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{{Tabs
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|maxwidth = 20
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|tab1 = Info
 
|tab2 = Synopsis
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|tab3 = Relationships
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|tab4 = Image Gallery
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}}
 
{{Character
 
{{Character
 
|image1 = <gallery>
 
|image1 = <gallery>
Kokushibo pp.png|Demon
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Kokushibo colored body.png|Demon
Kokushibo as human.png|Human
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Kokushibo colored body (human).png|Human
 
</gallery>
 
</gallery>
 
|kanji = 黒死牟
 
|kanji = 黒死牟
|rōmaji = Kokushibō
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|rōmaji = ''Kokushibō''
 
|alias = Michikatsu Tsugikuni {{small|(Human)}}
 
|alias = Michikatsu Tsugikuni {{small|(Human)}}
|race = [[Demon]]
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|race = [[Demon]]<br>Human {{Small|(Formerly)}}
Human {{Small|(Formerly)}}
 
 
|gender = Male
 
|gender = Male
 
|age = 20-24 {{small|(Physically)}}<br>480-485 {{small|(Chronologically)}}
 
|age = 20-24 {{small|(Physically)}}<br>480-485 {{small|(Chronologically)}}
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|hair_color=Black
|affiliation = [[Demon Slaying Corps]] {{small|(Formerly)}}<br>[[Twelve Demon Moons]]
 
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|eye_color=Brown {{small|(Human)}}<br>Yellow with Red Sclera {{small|(Demon)}}
 
|affiliation = [[Demon Slayer Corps]] {{small|(Formerly)}}<br>[[Twelve Demon Moons]]
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|combat_style=[[Breath of the Moon]]
 
|status = Deceased
 
|status = Deceased
 
|relative(s) = Unnamed Father {{small|(†)}}<br>Unnamed Mother {{small|(†)}}<br>[[Yoriichi Tsugikuni]] {{small|(Younger Twin Brother,†)}} <br>Unnamed Two Children<br>Unnamed Wife<br>[[Yuichiro Tokito]] {{small|(Descendant,†)}}<br>[[Muichiro Tokito]] {{small|(Descendant,†)}}
 
|relative(s) = Unnamed Father {{small|(†)}}<br>Unnamed Mother {{small|(†)}}<br>[[Yoriichi Tsugikuni]] {{small|(Younger Twin Brother,†)}} <br>Unnamed Two Children<br>Unnamed Wife<br>[[Yuichiro Tokito]] {{small|(Descendant,†)}}<br>[[Muichiro Tokito]] {{small|(Descendant,†)}}
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|image_gallery = [[Kokushibo/Image Gallery]]
 
|image_gallery = [[Kokushibo/Image Gallery]]
 
}}
 
}}
{{Nihongo|'''Kokushibo'''|{{Ruby|黒|こく}}{{Ruby|死|し}}{{Ruby|牟|ぼう}}|Kokushibō}} was a member of the [[Twelve Demon Moons]], holding the position of Upper Moon One.<ref>''Kimetsu no Yaiba Manga'': [[Chapter 164]], Page 19</ref>
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{{Nihongo|'''Kokushibo'''|{{Ruby|黒|こく}}{{Ruby|死|し}}{{Ruby|牟|ぼう}}|Kokushibō}} was a member of the [[Twelve Demon Moons]], holding the position of their most powerful, Upper Moon One. Before becoming a [[Demon]], his human identity was {{Nihongo|'''Michikatsu Tsugikuni'''|{{Ruby|継|つぎ}}{{Ruby|国|くに}}{{Ruby|厳|みち}}{{Ruby|勝|かつ}}|Tsugikuni Michikatsu}},<ref>''Kimetsu no Yaiba Manga'': [[Chapter 165]], Page 5</ref> a former [[Demon Slayer]] and the twin brother of [[Yoriichi Tsugikuni]]. He was also the ancestor of [[Muichiro Tokito]].
 
Before becoming a [[Demon]], he was a Demon Slayer named {{Nihongo|'''Michikatsu Tsugikuni'''|{{Ruby|継|つぎ}}{{Ruby|国|くに}}{{Ruby|厳|みち}}{{Ruby|勝|かつ}}|Tsugikuni Michikatsu}}.<ref>''Kimetsu no Yaiba Manga'': [[Chapter 165]], Page 5</ref>
 
   
 
==Appearance==
 
==Appearance==
Kokushibo is a tall man with long black hair that he keeps in a ponytail. He has three sets of eyes on his face, with red-eye whites and yellow irises. His middle set of eyes features the mark of Upper Moon One, and red markings resembling flames can be seen on his face and neck. He wears a patterned kimono with a black [https://en.wikipedia.org/wiki/Hakama hakama] on his waist. On his waist, he carries a sword that has eyes in the space between the [https://commons.wikimedia.org/wiki/Category:Tsuka tsuka] wrapping of the handle of his sword. The guard and blade were also later revealed to have eyes and veins.
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Kokushibo was a pale-skinned, tall man with long and spiky, black hair that he kept in a ponytail. He had three sets of eyes on his face with red sclera and yellow irises. His middle set of eyes featured the mark of Upper Moon One, and red markings resembling flames were seen on his face and neck.
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Kokushibo wore a purple-and-black-patterned kimono and black [[Wikipedia:Hakama|hakama]] pants tied with a white cloth. He carried a sword at his waist that had eyes in the space between the [https://commons.wikimedia.org/wiki/Category:Tsuka tsuka] wrapping of the handle of his sword. The guard and blade were also later revealed to have eyes and veins.
   
Kokushibo's appearance as a human looks nearly the same as his current demon appearance, with the exception he has only two eyes, no additional eyes, he has eyebrows and his hairstyle slightly different than his current Demon appearance.
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As a human, Kokushibo's appearance was nearly identical to his Demon form, with the exception of the number of eyes, his prominent eyebrows, and his notably less pale skin. His eyes had brown irises and normal, white sclera as a human.
   
After being beheaded by [[Sanemi Shinazugawa]] and [[Gyomei Himejima]], Kokushibo evolves into a grotesque version of his current appearance, with protruding fangs, a pair of horns, and several sharp appendages from his body.
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After being beheaded by [[Sanemi Shinazugawa]] and [[Gyomei Himejima]], Kokushibo evolved into a grotesque version of his Demon appearance, with protruding fangs, a pair of horns, and several sharp appendages from his body.
   
 
==Personality==
 
==Personality==
Kokushibo is reserved yet shrouded in mystery. At the meeting of the Upper Moons, he is punctual, rule-abiding, and places a high value in the hierarchy of the Twelve Demon Moons. He is also humble, as he did not hesitate to admit his failure or complain of any difficulty, instead of acknowledging his opponent's strength. He has displayed a strong sense of loyalty towards [[Muzan Kibutsuji]], with most of his actions being done with the sole purpose of fulfilling Muzan's goals.
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Kokushibo was often a reserved Demon, and with such little knowledge about the Upper Demon Moons, not much was originally known about him. He was an adamant rule-follower, punctual, and he showed a great deal of respect to the hierarchy of the Twelve Demon Moons - as seen at the Upper Moon Gathering.<ref>Kimetsu no Yaiba Manga: [[Chapter 98]]</ref> Kokushibo was portrayed to be humble as well, and he did not hesitate to admit his failure or complain of any difficulty. He displayed a strong sense of loyalty towards [[Muzan Kibutsuji]], with most of his actions being done with the sole purpose of fulfilling Muzan's goals.
   
Despite exhibiting outward reservation and humility, he is also rather cold; his words can be harsh, especially when reprimanding individuals. His threats come off as nothing short of cruel and overwhelmingly serious, and he demands absolute obedience.
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Despite exhibiting outward reservation and humility, he was also rather cold; his words could be extremely harsh, especially when reprimanding individuals. His threats came off as nothing short of cruel and overwhelmingly serious, and he demanded absolute obedience.
   
He has a complex relationship with his human past. He shows something of warmth towards his descendant [[Muichiro Tokito]], commending his skills and resolve, and moves to convert Muichiro into a demon to spare his life. At the same time, he refers to Muichiro and his abilities as the natural result of his "cells" being passed down. As a result, it is unclear whether he has any true attachment, or if it is the result of narcissistic pride. Seeing the two Demon Slaying Brothers, Sanemi and [[Genya Shinazugawa]], makes him nostalgic. Battling Sanemi made him reminisce about dueling a former Wind Pillar to improve his skills. Later it was revealed that as a human he harbored an immense sense of jealousy towards his younger twin brother, [[Yoriichi Tsugikuni]] for his immense natural born talent and ability. These feelings of jealousy and eventual contempt were even further enhanced upon seeing his brother aged to an old man and having survived to this age despite awakening his Demon Slayer Mark, that was to supposedly doom him to die at the age of 25.
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He had a complex relationship with his human past. He showed something of warmth towards his descendant [[Muichiro Tokito]], commending his skills and resolve, and moved to convert Muichiro into a Demon to spare his life. At the same time, he referred to Muichiro and his abilities as the natural result of his "cells" being passed down.
   
However, despite this immense jealousy, spite, and outright hatred he harbored for Yoriichi, it was shown that he still deeply cared and loved his brother despite the negative views he held for him,as seen when he was genuinely touched by Yoriichi treasuring the handmade flute he had made for him as children and upon slashing his brothers corps and seeing that he still held on to the flute despite everything,Kokushibo shed genuine tears of regret over his brother and even went as far as keeping the flute itself for the next hundred years as a memento to the Younger brother he both hated and loved.
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It was revealed that as a human, Kokushibo harbored an immense sense of jealousy towards his younger twin brother, [[Yoriichi Tsugikuni]], for his natural talent and incredible abilities. These feelings of jealousy and contempt strengthened upon seeing his brother aged to an old man despite Yoriichi awakening his [[Demon Slayer Mark]], which was to supposedly doom him to die at the age of 25. However, despite this immense jealousy, spite, and outright hatred he harbored for Yoriichi, he still deeply cared for and loved his brother, as seen when he was touched by Yoriichi treasuring the handmade flute he had made for him as children. Kokushibo shed genuine tears over his brother's death, and even went as far as keeping the flute itself for the following centuries as a memento to his beloved and hated younger brother.
   
In his duel against Gyomei Himejima, his banter suggests a fear of death. When Gyomei's marks appear, Kokushibo preemptively bemoans the loss of a talented fighter and urges him to become a demon to continue honing his skills. He seems genuinely surprised when Gyomei vehemently rejects his offer and calls his mentality pathetic.<ref>''Kimetsu no Yaiba Manga'': [[Chapter 170]], Pages 6-12</ref>
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In his duel against [[Gyomei Himejima]], the Demon's banter suggested a fear of death. When Gyomei's marks appeared, Kokushibo preemptively bemoaned the loss of a talented fighter and urged him to become a Demon to continue honing his skills. He seemed genuinely surprised when Gyomei vehemently rejected his offer and called his mentality pathetic.<ref>''Kimetsu no Yaiba Manga'': [[Chapter 170]], Pages 6-12</ref>
   
Likely a result of his inferiority complex and his immense desire for strength, Kokushibo fears the prospect of suffering defeat, so much that he becomes increasingly more aggressive and agitated when pushed further into a corner, and becomes more desperate in his attacks and the use of his demon power. During his battle with the pillars, he comes to realize the steep price he has paid for the strength he so much desired, becoming an ugly monster far away from his idealized dream of a strong samurai just like his brother, symbolizing how much his deep ambitions and resentment have warped him for the worst. Later upon his death, he greatly lamented and regretted his choices in his life and began to openly question himself if the path he walked was truly the right one.
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Likely a result of his inferiority complex and his immense desire for strength, Kokushibo feared the prospect of suffering defeat. So much so, he became increasingly more aggressive and agitated when being pushed further into a corner, causing him to become more desperate in his attacks and the use of his Demon power. During his battle with the [[Pillars]], he came to realize the steep price he had paid for the strength he so much desired, becoming an ugly monster far away from his idealized dream of a strong samurai just like his brother, symbolizing how much his deep ambitions and resentment had warped him for the worst. Later upon his death, he greatly lamented and regretted his choices in his life and began to openly question himself if the path he walked was truly the right one.
 
==History==
 
===Human Life===
 
Born in the [https://en.wikipedia.org/wiki/Sengoku_period Sengoku] Period, Kokushibo's birth name was Michikatsu Tsugikuni. At the time that he and his brother Yoriicchi were born, twins were considered a bad omen, and when their father saw that Yoriichi had a strange birthmark on his forehead, he declared that he would kill Yoriichi.<ref>''Kimetsu no Yaiba Manga'': [[Chapter 177]]</ref> However, his wife was outraged at his announcement, and an agreement was made that instead of being killed, Yoriichi would be sent to the temple and become a priest upon turning ten. Yoriichi and Michikatsu grew up very differently, Yoriichi being confined to a three-tatami room separate from the rest of the house and being kept away from his brother. Michikatsu, who had to sneak around behind their father's in order to see his brother, pitied Yoriichi, who was thought deaf until he was seven and clung to his mother's side whenever Michikatsu saw her. At some point, he gave Yoriichi a flute he made as a gift.
 
 
Around when Michikatsu was seven, he was practicing sword swings while his brother watched. It was then that Yoriichi spoke for the first time, shocking Michikatsu; however, Yoriichi's declaration of his goal to become a samurai like his brother was dismissed, as he would be sent to the temple when he was ten. Nonetheless, Yoriichi continued to watch Michikatsu's training, and one day, one of their father's men offered to give Yoriichi some instruction. Though he only showed him a basic stance, Yoriichi was able to land four blows on the man. This incident bewildered Michikatsu, who had never before landed a blow on the man, and he begged his brother to teach him his secret. To Michikatsu's disappointment, Yoriichi only expressed his distaste for combat and stated that he no longer wanted to become a samurai. Once, however, Yoriichi mentioned that before he took a stance, he breathed deeply, examining his bone alignment, muscle contraction, and blood flow, implying an early form of the [[Breath of the Sun]] style that Yoriichi would later adopt. This conversation caused Michikatsu to realize that for Yoriichi, the bodies of living things were transparent, causing him to pursue mastery of the blade with renewed intensity.
 
 
As Michikatsu studied the sword, he felt envious of his brother, who he felt was squandering his natural physical talent. He also feared that, now that their father likely knew about Yoriichi's immense potential, their roles would be swapped and he would be the one sent to the temple in Yoriichi's place. Yoriichi recognized this as well; the night that their mother finally succumbed to her illness, he came to Michikatsu's room at three in the morning to tell his brother the news and bid goodbye to Michikatsu, as he planned to leave for the temple before their father could make Yoriichi the family's new successor. Yoriichi expressed gratitude to his brother for giving him heart and fondly held the flute that Michikatsu had given him earlier. Michikatsu, however, was irritated, wondering how Yoriichi could treasure a flute that couldn't even play in tune, and watched his brother depart while saying nothing. His jealousy of his brother only grew when he read his mother's diary following her death, which revealed that Yoriichi had known everything about their mother's illness from when she would die and the increasing weakness of the left side of her body, and had planned accordingly. From then, Michikatsu resented Yoriichi, who he realized to be not only physically gifted, but a genius as well.
 
 
Ten years later, Michikatsu became a samurai and married a woman who gave birth to two of his children. One night, a [[Demon]] attacked his camp, but was quickly killed by Yoriichi who came to his rescue and apologized for not being able to save his subordinates. Twisted by jealousy, Michikatsu abandoned his family and became a Demon Slayer by training under Yoriichi. During that time, he trained alongside a [[Breath of Wind]] user and polished his sword skills together with them. Eventually, Michikatsu awakened a [[Demon Slayer Mark]] and developed a [[Breath Style]] derived from the Breath of the Sun known as the [[Breath of the Moon]]. Frustrated from being unable to surpass his brother, as well as fearing the fated death of those who awakened their Demon Slayer Marks, Michikatsu was persuaded by Muzan Kibutsuji and became a demon. <ref>''Kimetsu no Yaiba Manga'': [[Chapter 178]] Page 3-11</ref>
 
 
As a Demon Slayer, Michikatsu was often prideful in the uniqueness of their generation, but was irritated by his brother's optimism when he brought up the fact that the pair had no successors in line for their unique Breath Styles, the Breath of the Sun and Breath of the Moon.<ref>''Kimetsu no Yaiba Manga'': [[Chapter 176]], Pages 1-2</ref>
 
 
===Demon Life===
 
Out of fear of death, Michikatsu became a Demon and took on the name Kokushibo. Because he was also Breath user, it took him three days fully transform into a demon. Eventually, he became Upper Moon One of the Twelve Demon Moons, remaining at that rank for hundreds of years, while his original name was lost to history.
 
 
Sixty years after becoming a Demon, Kokushibo comes face to face with Yoriichi, his brother. Yoriichi offered his sympathies at the fact that Kokushibo is now a Demon and that he must slay him. Yoriichi then completely outclasses Kokushibo, even slitting his throat. Kokushibo remembers their past together, angrily yelling how the Gods always smiled upon him and how he was blessed with otherworldly skill as a swordsman. Even letting him live to old age while all other marked individuals would die by the age of 25. But, before Yoriichi had the opportunity to cut Kokushibo's head entirely off, he dies standing due to old age.<ref>''Kimetsu no Yaiba'' Manga: [[Chapter 174]]</ref> Enraged by the feeling of inferiority, Kokushibo slashed Yoriichi in half, along with the flute he gave him as a gift. However, it is later revealed that he still kept the flute, being unable to truly sever his bond with his brother.<ref>''Kimetsu no Yaiba Manga'': [[Chapter 178]], Page 13</ref>
 
 
Having fought numerous Demon Slayers across the centuries, he encountered one Demon Slayer about 300 years prior to the present with an ability similar to Genya's-devouring demons to enhance his own strength. It is implied that this Demon Slayer's ability wasn't as adept as Genya's given that Kokushibo slew him just by cutting his torso into two.<ref>''Kimetsu no Yaiba Manga'': [[Chapter 166]], Pages 8-9</ref>
 
 
==Synopsis==
 
===[[Red Light District Arc]]===
 
Kokushibo was summoned to a meeting of the Upper Moons, arriving before all of his colleagues. He silently sat facing a wall, only speaking when his presence was acknowledged by the [[Biwa Demon]], and revealing that Muzan had arrived. Muzan revealed the death of [[Gyutaro]], berating Kokushibo and his fellow Upper Moons for being unable to destroy the Ubuyashiki family and failing to find the Blue Spider Lily. Kokushibo admitted that he had nothing to say in his defense, as [[Kagaya Ubuyashiki]] had cleverly hidden himself.<ref>''Kimetsu no Yaiba Manga'': [[Chapter 98]], Pages 9-15</ref>
 
 
After [[Akaza]] brutally destroyed [[Doma]]'s head, Kokushibo covertly sliced off the former's hand, stating he had gone too far. He explained to Doma that he had not intervened for his benefit, but for the preservation of the hierarchy of the Upper Moon system. He then told Akaza to arrange for a blood battle if he wanted to take Doma's position, asking him if he understood what he was being told. Akaza acknowledged this fact; promising to kill the high-ranking Upper Moon, which Kokushibo wished him luck before departing.<ref>''Kimetsu no Yaiba Manga'': [[Chapter 99]], Pages 2-7</ref>
 
 
===[[Dimensional Infinity Fortress Arc]]===
 
[[File:First Breath Users.png|thumb|The first Breath Users.]]
 
 
During a meeting of the [[Pillars]], [[Amane Ubuyashiki]] speculates Kokushibo may have been one of the original Breath users during the Sengoku Era, the group that was one step away from ending Muzan.<ref>''Kimetsu no Yaiba Manga'': [[Chapter 128]]</ref>
 
 
Kokushibo is present in a flashback of [[Kaigaku]], depicting the time just before Kaigaku following his defeat at the hands of Kokushibo. Kokushibo then offers his own blood and the power that Kaigaku craves if "[[Muzan Kibutsuji|that man]]" is willing to accept him as an ally. And as he does, he threatens that if a drop of blood is spilled, the human will be beheaded.<ref>''Kimetsu no Yaiba Manga'': [[Chapter 145]], Pages 2–5</ref>
 
 
Following Akaza's death, Kokushibo is seen alone. Murmuring how Akaza had abandoned his path to reach further heights and how he had failed to defeat Kokushibo, and reprimanded him for how weak he is. Simultaneously, he reaches for his katana, and instantly slices the surrounding stone pillars to pieces in a single stroke.<ref>''Kimetsu no Yaiba Manga'': [[Chapter 157]], Page 5</ref>
 
 
Some time later, Muichiro Tokito is transported to the same room as Kokushibo. Kokushibo then comments: "You came... Demon Slayer. For some reason... you seem familiar".<ref>''Kimetsu no Yaiba Manga'': [[Chapter 164]], Page 19</ref> He then deduces that Muichiro is a descendant of a child he left behind after becoming a demon. He also deduces that his human surname of Tsugikuni has died out over the generations. After Muichiro calms himself down and performs various Styles from the Breath the Mist, his Demon Slaying Mark appears. Kokushibo then complements how accomplished Muichiro is as a swordsman at such a young age. Kokushibo states that it must be due to the powerful blood he passed down, although Muichiro dismisses such claims. After some more battling, Kokushibo manages to cut off Muichiro's arm. Muichiro quickly tightens his arm to stop the bleeding, greatly impressing Kokushibo. However, Muichiro is effortlessly pinned against a pillar when Kokushibo impales him with the Muichiro’s own sword. Kokushibo then offers Muichiro the opportunity to become a demon who is faithful to Muzan, stating that this would not only heal his arm, but also offer him great power.<ref>''Kimtesu no Yaiba Manga'': [[Chapter 166]], Pages 4-20</ref>
 
 
This discussion is however interrupted by Genya shooting his Nichirin Gun. Kokushibo easily avoids the gunshot, appearing behind Genya and then proceeding to cut off both his arms and his torso in half, commenting that: "Hmm, I see. You're the one who's been eating demon's, huh?"<ref>''Kimtesu no Yaiba Manga'': [[Chapter 167]], Page 6</ref> However, he realises that Genya is unlike the other imitation Demon from 300 years ago and that the way to kill him is the same way regular demons are killed, by chopping off their head. Before he has the opportunity to do this, Genya is saved by his brother. After Genya apologises for everything he's done to Sanemi, Kokushibo states that: "Hmm, brothers and Demon Slayers, that brings back memories...".<ref>''Kimtesu no Yaiba Manga'': [[Chapter 166]], Page 15</ref> Given this and his appearance, it is heavily implied that he might be the brother of the man who passed the [[Dance of the Fire God]] down to the Kamado family.
 
 
Sanemi and Kokushibo then begin their intense duel, with Kokushibo being slightly taken aback at the skill of the Wind Pillar. However, he retains his composure and stated that he couldn't survive if his senses weren't honed from long experience.<ref>''Kimtesu no Yaiba Manga'': [[Chapter 167]], Page 5</ref> This goes on for sometime, with Kokushibo even stating that long ago when Japan was at war, he gained a lot of experience fighting against a similarly strong Wind Pillar.<ref>''Kimtesu no Yaiba Manga'': Chapter 167, Page 13</ref> Kokushibo then gets a good enough cut on Sanemi, stating that moving would lead to his entrails to spill out. Sanemi proceeds to laugh hysterically, boasting the fact that he had marechi blood.<ref>''Kimtesu no Yaiba Manga'': [[Chapter 167]], Page 19</ref> Sanemi uses his abnormal body and breathing skills to control his muscles to coagulate the blood and stop the bleeding as much as possible. After some struggling and Kokushibo showing glee at the opportunity at fighting such a skilled Pillar, he was about to deal a significant blow until Gyomei, the Stone Pillar arrives.
 
 
Kokushibo was unable to retain himself. Openly stating that he admired Gyomei's peek physical form.<ref>''Kimtesu no Yaiba Manga'': [[Chapter 168]], Page 3</ref> Following an intense back and forth battle, Gyomei reveals his trump card he meant to save for Muzan, his Demon Slaying Mark. Kokushibo then confirms that he too has the Demon Slaying Mark. Almost showing sympathy towards Gyomei, he reveals the caveat of the Demon Slaying Mark: "Without exception, the marked ones die before they reach the age of 25."<ref>''Kimtesu no Yaiba Manga'': [[Chapter 170]], Page 7</ref> Stating that the mark reduces life expectancy and that Gyomei should be dead by the end of the night since he's 27 years old. After an existential discussion of what it means to be a Demon Slayer and a human, Kokushibo offers Gyomei an opportunity to become a demon so he can survive and continue to hone his craft the same way he has. Gyomei outright rejects the offer and states that Kokushibo stated one falsehood: "I suspect there was an exception. There was one who had the mark, lived past 25 and is still alive."<ref>''Kimtesu no Yaiba Manga'': [[Chapter 167]], Page 12</ref> Kokushibo then appears to be somewhat shaken, but the two continue their intense battle. After Sanemi manages to stitch his wound, he rejoins the fray as the two now face Kokushibo in a 2 on 1 battle. Kokushibo notes with surprise the ease with which they are able to cooperate despite being users of two different breaths <ref>''Kimetsu No Yaiba Manga'': [[Chapter 174]], Page 19</ref>. The three of them continue their battle until suddenly, Sanemi and Gyomei are cut by what appears to be an elongated sword with three blades extending from the sides, two from one side and one on the other. Kokushibo now appears to be completely serious in his encounter, angrily stating: "You merely shredded my kimono, not even enough to kill an infant. Once I dispatch you two, the rest will proceed easily."<ref>''Kimtesu no Yaiba Manga'': [[Chapter 171]], Page 19</ref>
 
 
In the meantime, Muichiro manages to free himself from the pillar. With the little life left in him, he helps Genya by reattaching his body and feeding him a clump of Kokushibo's hair. Genya then feels power he's never felt before, but more importantly appears to directly hear Muzan's voice, asking Kokushibo: "Kokushibo, how many Hashira have you defeated? Don't let them come here yet."<ref>''Kimtesu no Yaiba Manga'': [[Chapter 171]], Page 4</ref>, indicating that Muzan is likely still incapacitated by the initial explosion and the Blood Demon Art Tamayo performed on him.
 
 
The battle then begins to pick up, Kokushibo's attacks increasing with both intensity and frequency. He is able to sever two of Sanemi's fingers, and Gyomei and Sanemi are both reduced to putting all of their efforts into simply avoiding his attacks. Right as it seems that Sanemi is about to lose, though, Muichiro rejoins the battle, saving the other Pillar just in time <ref>''Kimetsu no Yaiba Manga'': [[Chapter 172]], Page 14</ref>. Genya, who is hiding from the battle behind a wall, recalls a conversation he had with Tanjiro about being the weakest person in a battle, and, motivated by this, swallows a broken piece of Kokoshibo's blade in order to gain its abilities. The advantage seems to again shift to Kokoshibo, but in an unexpected turn of events, Gyomei is able to sever the Upper Moon's right arm while Muichiro stabs him through the torso, immobilizing him while Genya unleashes a barrage of bullets on the demon using his gun, which he altered using his own cells in a similar manner to Kokushibo's sword. The bullets embedded into the Demon's flesh then erupt into "trees," completely trapping him as Gyomei and Sanemi rush in to finish him off. The sensation disturbs Kokushibo, who is reminded of an encounter from 400 years ago in which he met his younger brother, Yoriichi, after not having seen him for 60 years.<ref>''Kimetsu no Yaiba Manga'': [[Chapter 174]], Pages 7-19</ref> In the encounter, Yoriichi was able to land a hit on his brother's neck, which no one had ever done before; however, Yoriichi passed away on his feet before he was able to land the next blow.
 
 
Enraged by the thought of being defeated, Kokushibo sprouts many blades from his body and slashes both Muichiro and Genya in half (Muichiro horizontally, Genya vertically) and severely wounding Sanemi and Gyomei. Still, the four charge onwards, undeterred. As Muichiro's blade turns red, seemingly seering Kokushibo's organs, Genya unleashes another Blood Demon Technique, rooting another tree in Kokushibo's back while Gyomei lands a blow on Kokushibo's head with his flail and Sanemi rushes in with his sword. Their weapons all begin to turn red, and, struck with thoughts of his brother, Kokushibo marvel at how the Demon Slayers who came after them have risen up to surpass them. However, wonder soon gives way to rage as Kokushibo's head is cut off, and, to the horror of the four Demon Slayers, Kokushibo regrows his head.<ref>''Kimetsu no Yaiba Manga'': [[Chapter 176]], Pages 4-10</ref>
 
 
Kokushibo begins to celebrate, boasting to himself that now that he has conquered death by beheading, any attacks thrown at him are now rendered meaningless. However, his triumph gives way to disbelief when he sees himself in the reflection of Sanemi's blade. His new form is monstrous, with tusks and spikes of flesh protruding from his head face and back. Stunned by his appearance, he recalls his original motivation to be the strongest samurai in the country and wonders if the path he has taken is what he really wanted. While he reflects on his motivations, Gyomei is able to crush his head with his flail, again beheading Kokushibo. The Upper Moon attempts to regenerate, but to his disbelief, his flesh begins to crumble away and he is rendered unable to use his Blood Demon Technique. As he falls to the ground, disintegrating, he reflects bitterly that he only wanted to be like Yoriichi while his life flashed before him. In the end, he admits that he abandoned everything and got nothing from it. In fact, he killed his only remaining blood relative and betrayed his samurai code. He then crumbled away completely, leaving only the sliced up pieces of flute he made for Yoriichi when they were children, which he kept for all these centuries.
 
   
 
==Abilities and Powers==
 
==Abilities and Powers==
Kokushibo is an extremely powerful swordsman, considered to be the strongest of the Twelve Demon Moons and the second strongest demon in the series, just behind Muzan Kibitsuji. As one of the oldest demons in the series, he has battled numerous Demon Slayers and has obtained vast experience and knowledge of combat. He was able to easily decipher the techniques and skills of at least [[Muichiro Tokito|two]] [[Sanemi Shinazugawa|Pillars]] and overwhelm them in battle. As a breath user, he possess tremendous levels of strength and reflexes that are further enhanced by his demon physiology.
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Kokushibo was an extremely powerful swordsman, considered to be the strongest of the [[Twelve Demon Moons]] and the second strongest Demon in the series, just behind [[Muzan Kibutsuji]]. As one of the oldest Demons in the series, he had battled numerous Demon Slayers and obtained vast experience and knowledge of combat. He was able to easily decipher the techniques and skills of at least [[Muichiro Tokito|two]] [[Sanemi Shinazugawa|Pillars]] and overwhelm them in battle. As a [[Breath Styles|Breath]] user, he possessed tremendous levels of strength and reflexes that were further enhanced by his Demon physiology.
 
These overall abilities and skills allowed him to defeat two Pillars with minimal effort and then fight on par against Gyomei, who is considered to be the most powerful Demon Slayer in the Demon Slaying Corps.<ref>''Kimetsu no Yaiba Manga'': [[Chapter 169]], Pages 2-18</ref> Even when Gyomei and Sanemi awaken their demon slayer marks which increase one's physical abilities way above their normal limit, he is still capable of holding his own against the both of them simultaneously.<ref>''Kimetsu no Yaiba Manga'': [[Chapter 170]], Pages 13-19</ref><ref>''Kimetsu no Yaiba Manga'': [[Chapter 171]], Pages 5-14</ref>
 
   
 
These overall abilities and skills allowed Kokushibo to defeat two Pillars with minimal effort and then fight on par against Gyomei, who was considered to be the most powerful Demon Slayer in the [[Demon Slayer Corps]].<ref>''Kimetsu no Yaiba Manga'': [[Chapter 169]], Pages 2-18</ref> Even when Gyomei and Sanemi awakened their Demon Slayer Marks, which increased one's physical abilities way above their normal limit, he was still capable of holding his own against the both of them simultaneously.<ref>''Kimetsu no Yaiba Manga'': [[Chapter 170]], Pages 13-19</ref><ref>''Kimetsu no Yaiba Manga'': [[Chapter 171]], Pages 5-14</ref>
When he starts using his more of his power, he manages to overwhelm both Gyomei and Sanemi, both of whom were boosted by their Demon Slayer Marks.<ref>''Kimetsu no Yaiba Manga'': [[Chapter 171]], Page 15</ref> Testament to his might, it ultimately took a combination of attacks from Gyomei, Sanemi and Muichiro to even land a significant injury on him.
 
   
 
When he started using his more of his power, Kokushibo managed to overwhelm both Gyomei and Sanemi, both of whom were boosted by their Demon Slayer Marks.<ref>''Kimetsu no Yaiba Manga'': [[Chapter 171]], Page 15</ref> As a testament to his might, it ultimately took a combo of attacks from Gyomei, Sanemi, and Muichiro to even land a significant injury on him. In the end, Kokushibo's loss was mostly a result of his sudden inability to regenerate and began crumbling due to realizing his mistake, rather than the skills of his opponents.<ref>''Kimetsu no Yaiba Manga'': [[Chapter 176]], Pages 15-17</ref>
In the end, Kokushibo's loss against the Pillars was mostly a result of him losing the will the continue fighting, rather than the skills of his opponents.
 
   
 
===Demon Abilities===
 
===Demon Abilities===
*'''Master Swordsman''': Kokushibo is an extremely powerful and skilled swordsman. During his time as a human, he was one of the first Breath users.<ref>''Kimetsu no Yaiba Manga'': [[Chapter 128]], Page 14</ref>
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*'''Master Swordsman''': Kokushibo was an extremely powerful and skilled swordsman. During his time as a human, he was one of the first [[Breath Styles|Breath]] users.<ref>''Kimetsu no Yaiba Manga'': [[Chapter 128]], Page 14</ref>
   
*'''Immense Speed''': Kokushibo possesses immense levels of speed, as shown when he outpaces Muichiro's Breath Techniques with great ease.<ref>''Kimetsu no Yaiba Manga'': [[Chapter 165]], Pages 8-13</ref> Muichiro himself states that Kokushibo's speed is in another dimension compared to the Pillars.<ref>''Kimetsu no Yaiba Manga'': [[Chapter 165]], Page 15</ref>
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*'''Immense Speed''': Kokushibo possessed immense levels of speed, as shown when he outpaced Muichiro's Breath Techniques with great ease.<ref>''Kimetsu no Yaiba Manga'': [[Chapter 165]], Pages 8-13</ref> Muichiro himself stated that Kokushibo's speed was in another dimension compared to the Pillars.<ref>''Kimetsu no Yaiba Manga'': [[Chapter 165]], Page 15</ref>
   
*'''Immense Durability''': Kokushibo has displayed immense physical durability as seen when despite Gyomei using both his flail and axe to attack both ends of his neck it still didn't budge,<ref>''Kimetsu no Yaiba Manga'': [[Chapter 175]], Pages 15-17</ref> his neck was only severed thanks to both the combined efforts of both Gyomei and Sanemi putting all of their strength into forcing his head to slide down Gyomei's Axe.<ref>''Kimetsu no Yaiba Manga'': [[Chapter 175]], Pages 20-21</ref>
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*'''Immense Durability''': Kokushibo had displayed immense physical durability as seen when despite Gyomei using both his flail and axe to attack both ends of his neck, it still didn't budge.<ref>''Kimetsu no Yaiba Manga'': [[Chapter 175]], Pages 15-17</ref> His neck was only severed thanks to both the combined efforts of both Gyomei and Sanemi putting all of their strength into forcing his neck to be sliced with Gyomei's axe.<ref>''Kimetsu no Yaiba Manga'': [[Chapter 175]], Pages 20-21</ref>
   
[[File:HumanKoku.png|thumb|right|Kokushibo's Demon Slayer Mark.]]
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[[File:Kokushibo colored profile (human).png|thumb|right|Kokushibo's Demon Slayer Mark.]]
   
*'''[[Demon Slayer Mark]]''': A special Mark worn by certain "awakened" Demon Slayers that resembles Demon Marks. Its specific abilities are unknown, but what is know is that it drastically improves the abilities of the Demon Slayer, making them much stronger, faster and able to react quicker than what they can achieve normally, though at the cost of being cursed to die at the age of 25. As a Demon, not only is Kokushibo no longer bound by the curse, but the Mark's abilities are enhanced even further than when he was a human.
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*'''[[Demon Slayer Mark]]''': A special Mark worn by certain "awakened" Demon Slayers that resembles Demon Marks. Its specific abilities are unknown, but what is know is that it drastically improves the abilities of the Demon Slayer, making them much stronger, faster and able to react quicker than what they can achieve normally, though at the cost of being cursed to die at the age of 25. As a Demon, not only was Kokushibo no longer bound by the curse, but the Mark's abilities were enhanced even further than when he was a human.
   
*{{Nihongo|'''See-Through World'''|{{Ruby|透|す}}き{{Ruby|通|とお}}る{{Ruby|世|せ}}{{Ruby|界|かい}}|Sukitōru Sekai}}: Similar to Tanjiro, Kokushibo has obtained the ability to see the "see through world" through the use of his three pairs of eyes. This grants him superhuman kinetic vision similar to [[Kanao Tsuyuri]], allowing him to see the muscles, blood flow, and joint movement of his opponents.<ref>''Kimetsu no Yaiba Manga'': [[Chapter 165]], Page 1</ref> He can accurately predict and anticipate the movements and attacks of his opponents with this ability. He was also able to identify that Muichiro was his descendant,<ref>''Kimetsu no Yaiba Manga'': [[Chapter 165]], Page 6</ref> immediately discern the skill level of Muichiro, Sanemi, and Gyomei with one look, and he was able to see that Genya consumed demons to gain strength by looking into his cellular structures.<ref>''Kimetsu no Yaiba Manga'': [[Chapter 166]], Page 6</ref>
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*{{Nihongo|'''See-Through World'''|{{Ruby|透|す}}き{{Ruby|通|とお}}る{{Ruby|世|せ}}{{Ruby|界|かい}}|Sukitōru Sekai}}: Similar to Tanjiro, Kokushibo has obtained the ability to see the "see-through world" through the use of his three pairs of eyes. This grants him superhuman kinetic vision similar to [[Kanao Tsuyuri]], allowing him to see the muscles, blood flow, and joint movement of his opponents.<ref>''Kimetsu no Yaiba Manga'': [[Chapter 165]], Page 1</ref> He can accurately predict and anticipate the movements and attacks of his opponents with this ability. He was also able to identify that Muichiro was his descendant,<ref>''Kimetsu no Yaiba Manga'': [[Chapter 165]], Page 6</ref> immediately discern the skill level of Muichiro, Sanemi, and Gyomei with one look, and see that [[Genya Shinazugawa]] consumed Demons to gain strength by looking into his cellular structures.<ref>''Kimetsu no Yaiba Manga'': [[Chapter 166]], Page 6</ref>
   
*'''Enhanced Regeneration''': Kokushibo possesses incredible regeneration, able to regenerate his ear<ref>''Kimetsu no Yaiba Manga'': [[Chapter 171]], Page 10-13</ref> and right arm<ref>''Kimetsu no Yaiba Manga'': [[Chapter 173]], Pages 12-13</ref> getting cut by Gyomei with no effort. Later, upon being decapitated by two Pillars, Kokushibo was able to regenerate his entire head and successfully conquered death by beheading,<ref>''Kimetsu no Yaiba Manga'': [[Chapter 176]], Page 10</ref> a feat only accomplished by only two Demon in existence; Akaza and Muzan. However, the process was slower than with Muzan and more unstable than Akaza, causing him to take on a monstrous visage.
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*'''Enhanced Regeneration''': Kokushibo possessed incredible regeneration, able to regenerate his ear<ref>''Kimetsu no Yaiba Manga'': [[Chapter 171]], Page 10-13</ref> and right arm<ref>''Kimetsu no Yaiba Manga'': [[Chapter 173]], Pages 12-13</ref> after getting cut by Gyomei with no effort. Later, upon being decapitated by two Pillars, Kokushibo was able to regenerate his entire head and successfully conquered death by beheading,<ref>''Kimetsu no Yaiba Manga'': [[Chapter 176]], Page 10</ref> a feat only accomplished by two other Demons: [[Akaza]] and Muzan. However, the process was slower than with Muzan and more unstable than Akaza, causing him to take on a monstrous form.
   
*'''Demonic Transformation''': Later, upon regrowing his head while battling Gyomei and Sanemi, Kokushibo was able to transform himself into a demonic, monstrous form resembling a spider that presumably enhances all of his abilities and powers.<ref>''Kimetsu no Yaiba Manga'': [[Chapter 176]], Page 10</ref>
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*'''Demonic Transformation''': Later, upon regrowing his head while battling Gyomei and Sanemi, Kokushibo was able to transform himself into a demonic, monstrous form resembling a spider that presumably enhanced all of his abilities and powers.<ref>''Kimetsu no Yaiba Manga'': [[Chapter 176]], Page 10</ref>
   
 
===Swordsmanship===
 
===Swordsmanship===
*'''Enhanced Breath Techniques''': As a Demon, Kokushibo's Breathing Techniques has been enhanced to heights beyond even what Pillars can achieve. His former position as analogous to a Pillar prior to becoming a Demon, as well as his Demon Slayer Mark and being an Upper Moon, shows that his skill and efficiency with Full Focus Breathing is almost unparalleled, with only his naturally-gifted brother surpassing him.
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*'''Enhanced Breath Techniques''': As a Demon, Kokushibo's Breathing Techniques has been enhanced to heights beyond even what Pillars can achieve. His former position was analogous to a Pillar prior to becoming a Demon, as well as his Demon Slayer Mark and being an Upper Moon, showing that his skill and efficiency with Full Focus Breathing is almost unparalleled, with only his naturally-gifted brother surpassing him.
   
*{{Nihongo|'''[[Blood Demon Technique]]'''|{{Ruby|血|けっ}}{{Ruby|鬼|き}}{{Ruby|術|じゅつ}}|Kekkijutsu}}<ref>''Kimetsu no Yaiba Manga'': [[Chapter 175]], Page 14-17</ref>: '''Flesh Sword''': Although the specific name of the Blood Demon Technique is unknown, Kokushibo reveals that he had detached some of his own flesh and shaped it into the katana that he uses in battle.<ref>''Kimetsu no Yaiba Manga'': [[Chapter 169]], Page 11</ref> The blade possesses numerous eyes in the blade, handle, and guard, allowing him to have an increased range of vision while using it in battle. Also, since the blade is created from his flesh, the blade can easily regenerate if destroyed or chipped. This ability is shown when the blade returns to its original shape in his battle with Gyomei. Kokushibo also displayed the ability to freely manipulate the form of the blade, growing three additional blades from the original blade to increase its reach and further increase its size. Later, Kokushibo also displayed the ability to grow and protrude multiple blades from his own body, allowing him to perform a multitude of slashes from them without a swinging motion. This attack was powerful enough to easily blow away two Pillars and destroy Genya's Blood Demon Art Technique, as well as slice in half numerous columns in the room, from just its activation; the full usage of the Blood Demon Art being unknown.
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*{{Nihongo|'''[[Blood Demon Art]]'''|{{Ruby|血|けっ}}{{Ruby|鬼|き}}{{Ruby|術|じゅつ}}|Kekkijutsu}}:<ref>''Kimetsu no Yaiba Manga'': [[Chapter 175]], Page 14-17</ref> '''Flesh Sword''': Although the specific name of the Blood Demon Art is unknown, Kokushibo reveals that he had detached some of his own flesh and shaped it into the katana that he uses in battle.<ref>''Kimetsu no Yaiba Manga'': [[Chapter 169]], Page 11</ref> The blade possessed numerous eyes in the blade, handle, and guard, allowing him to have an increased range of vision while using it in battle. Since the blade was also created from his flesh, it could easily regenerate if destroyed or chipped. This ability is shown when the blade returns to its original shape in his battle with Gyomei. Kokushibo also displayed the ability to freely manipulate the form of the blade, growing three additional blades from the original blade to increase its reach and further increase its size. Later, Kokushibo also displayed the ability to grow and protrude multiple blades from his own body, allowing him to perform a multitude of slashes from them without a swinging motion. This attack was powerful enough to easily blow away two Pillars and destroy Genya's Blood Demon Art, as well as slice in half numerous columns in the room, from just its activation; the full usage of the Blood Demon Art being unknown.
   
{{Nihongo|'''[[Breath of the Moon]]'''|{{Ruby|月|つき}}の{{Ruby|呼|こ}}{{Ruby|吸|きゅう}}|Tsuki no Kokyū}}: Like [[Kaigaku]], Kokushibo is a demon with a Breath style. His Breath of the Moon is one of the most dangerous sword styles displayed thus far. Sanemi noted that each and every slash and cut he makes using this breath style is surrounded by chaotic crescent moon like blades that constantly change size and length, increasing the range of his already powerful attacks.<ref>''Kimetsu no Yaiba Manga'': [[Chapter 167]], Page 5</ref> Kokushibo himself has continued to develop this breath style and has created multiple techniques over the centuries he has lived.
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{{Nihongo|'''[[Breath of the Moon]]'''|{{Ruby|月|つき}}の{{Ruby|呼|こ}}{{Ruby|吸|きゅう}}|Tsuki no Kokyū}}: Like [[Kaigaku]], Kokushibo was a Demon with a Breath style. His Breath of the Moon was one of the most dangerous sword styles displayed thus far. Sanemi noted that each and every slash and cut he made using this breath style was surrounded by chaotic, crescent moon-like blades that constantly changed size and length, increasing the range of his already powerful attacks.<ref>''Kimetsu no Yaiba Manga'': [[Chapter 167]], Page 5</ref> Kokushibo himself had continued to develop this breath style and had created multiple techniques over the centuries he had lived.
   
*{{Nihongo|'''First Form: Dark Moon - Evening Palace'''|{{Ruby|壱|いち}}ノ{{Ruby|型|かた}} {{Ruby|闇|やみ}}{{Ruby|月|づき}}・{{Ruby|宵|よい}}の{{Ruby|宮|みや}}|Ichi no kata: Yamizuki - Yoi no Miya}}: Kokushibo draws his sword and slashes swiftly in a single motion, like with all Breath of the Moon techniques, numerous chaotic crescent shaped blades originate from the slash. This technique resembles Iaido. <ref>''Kimetsu no Yaiba Manga'': [[Chapter 165]], Pages 14-15</ref>
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*{{Nihongo|'''First Form: Dark Moon - Evening Palace'''|{{Ruby|壱|いち}}ノ{{Ruby|型|かた}} {{Ruby|闇|やみ}}{{Ruby|月|づき}}・{{Ruby|宵|よい}}の{{Ruby|宮|みや}}|Ichi no kata: Yamizuki - Yoi no Miya}}: Kokushibo draws his sword and slashes swiftly in a single motion, like with all Breath of the Moon techniques, numerous chaotic crescent-shaped blades originate from the slash. This technique resembles Iaido.<ref>''Kimetsu no Yaiba Manga'': [[Chapter 165]], Pages 14-15</ref>
   
 
*{{Nihongo|'''Second Form: Pearl Flowers Moongazing'''|{{Ruby|弐|に}}の{{Ruby|型|かた}} {{Ruby|珠|しゅ}}{{Ruby|華|か}}ノ{{Ruby|弄|ろう}}{{Ruby|月|げつ}}|Ni no kata: Shuka no Rōgetsu}}:<ref>''Kimetsu no Yaiba Manga'': [[Chapter 169]], Pages 16-17</ref>
 
*{{Nihongo|'''Second Form: Pearl Flowers Moongazing'''|{{Ruby|弐|に}}の{{Ruby|型|かた}} {{Ruby|珠|しゅ}}{{Ruby|華|か}}ノ{{Ruby|弄|ろう}}{{Ruby|月|げつ}}|Ni no kata: Shuka no Rōgetsu}}:<ref>''Kimetsu no Yaiba Manga'': [[Chapter 169]], Pages 16-17</ref>
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*'''Fourth Form''':
 
*'''Fourth Form''':
   
*{{Nihongo|'''Fifth Form: Moon Spirit Calamitous Eddy'''|{{Ruby|伍|ご}}ノ{{Ruby|型|かた}} {{Ruby|月|げっ}}{{Ruby|魄|ぱく}}{{Ruby|災|さい}}{{Ruby|渦|か}}|Go no kata: Geppaku Saika}}: Kokushibo makes multiple curved slashes layered over one another resembling a rising vortex. Numerous chaotic blades originate from these slashes. Kokushibo performed this attack without swinging his blade.<ref>''Kimetsu no Yaiba Manga'': [[Chapter 167]], Page 2-3</ref>
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*{{Nihongo|'''Fifth Form: Moon Spirit Calamitous Eddy'''|{{Ruby|伍|ご}}ノ{{Ruby|型|かた}} {{Ruby|月|げっ}}{{Ruby|魄|ぱく}}{{Ruby|災|さい}}{{Ruby|渦|か}}|Go no kata: Geppaku Saika}}: Kokushibo makes multiple curved slashes layered over one another resembling a rising vortex. Numerous chaotic blades originate from these slashes. Kokushibo performed this attack without swinging his blade.<ref>''Kimetsu no Yaiba Manga'': [[Chapter 167]], Page 2-3</ref>
   
*{{Nihongo|'''Sixth Form: Perpetual Night, Lonely Moon - Incessant'''|{{Ruby|陸|ろく}}ノ{{Ruby|型|かた}} {{Ruby|常|とこ}}{{Ruby|夜|よ}}{{Ruby|孤|こ}}{{Ruby|月|げつ}}・{{Ruby|無|む}}{{Ruby|間|けん}}|Roku no kata: Tokoyo Kogetsu - Muken}}: Kokushibo releases a wild storm of slashes in multiple directions. This technique was powerful enough to not only slice up multiple Pillars around him but also overwhelm the Wind Pillar [[Sanemi Shinazugawa]]. <ref>''Kimetsu no Yaiba Manga'': [[Chapter 167]], Pages 14-15</ref>
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*{{Nihongo|'''Sixth Form: Perpetual Night, Lonely Moon - Incessant'''|{{Ruby|陸|ろく}}ノ{{Ruby|型|かた}} {{Ruby|常|とこ}}{{Ruby|夜|よ}}{{Ruby|孤|こ}}{{Ruby|月|げつ}}・{{Ruby|無|む}}{{Ruby|間|けん}}|Roku no kata: Tokoyo Kogetsu - Muken}}: Kokushibo releases a wild storm of slashes in multiple directions. This technique was powerful enough to not only slice up multiple Pillars around him but also overwhelm the Wind Pillar [[Sanemi Shinazugawa]].<ref>''Kimetsu no Yaiba Manga'': [[Chapter 167]], Pages 14-15</ref>
   
*{{Nihongo|'''Seventh Form: Mirror of Misfortune - Moonlit'''|{{Ruby|漆|しち}}ノ{{Ruby|型|かた}} {{Ruby|厄|やっ}}{{Ruby|鏡|きょう}}・{{Ruby|月|づき}}{{Ruby|映|ば}}え|Shichi no kata: Yakkyō - Zukibae}}: Kokushibo swings his sword in a powerful frontal slash that then creates a multi directional frontal assault, powerful enough to create several deep craters in the ground and push back at least two Pillars.<ref>''Kimetsu no Yaiba Manga'': [[Chapter 172]], Page 7</ref>
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*{{Nihongo|'''Seventh Form: Mirror of Misfortune - Lunar Shine'''|{{Ruby|漆|しち}}ノ{{Ruby|型|かた}} {{Ruby|厄|やっ}}{{Ruby|鏡|きょう}}・{{Ruby|月|づき}}{{Ruby|映|ば}}え|Shichi no kata: Yakkyō - Zukibae}}: Kokushibo swings his sword in a powerful frontal slash that then creates a multi-directional frontal assault, powerful enough to create several deep craters in the ground and push back at least two Pillars.<ref>''Kimetsu no Yaiba Manga'': [[Chapter 172]], Page 7</ref>
   
*{{Nihongo|'''Eighth Form: Moon-Dragon Ringtail'''|{{Ruby|捌|はち}}ノ{{Ruby|型|かた}} {{Ruby|月|げつ}}{{Ruby|龍|りゆう}}{{Ruby|輪|りん}}{{Ruby|尾|び}}|Hachi no kata: Getsuryū Rinbi}}: Kokushibo uses a direct frontal attack that creates a single gigantic slash.<ref>''Kimetsu no Yaiba Manga'': [[Chapter 172]], Page 8</ref>
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*{{Nihongo|'''Eighth Form: Lunar Ouroboros'''|{{Ruby|捌|はち}}ノ{{Ruby|型|かた}} {{Ruby|月|げつ}}{{Ruby|龍|りゆう}}{{Ruby|輪|りん}}{{Ruby|尾|び}}|Hachi no kata: Getsuryū Rinbi}}: Kokushibo uses a direct frontal attack that creates a single gigantic slash.<ref>''Kimetsu no Yaiba Manga'': [[Chapter 172]], Page 8</ref>
   
*{{Nihongo|'''Ninth Form: Waning Moonswaths'''|{{Ruby|玖|く}}ノ{{Ruby|型|かた}} {{Ruby|降|くだ}}り{{Ruby|月|づき}}・{{Ruby|連|れん}}{{Ruby|面|めん}}|Ku no kata: Kudarizuki Renmen}}: Kokushibo creates a seemingly endless stream of slashes capable of cutting down his intended target from long range.<ref>''Kimetsu no Yaiba Manga'': [[Chapter 172]], Page 10</ref>
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*{{Nihongo|'''Ninth Form: Descending Moon-Perpetual Phases'''|{{Ruby|玖|く}}ノ{{Ruby|型|かた}} {{Ruby|降|くだ}}り{{Ruby|月|づき}}・{{Ruby|連|れん}}{{Ruby|面|めん}}|Ku no kata: Kudarizuki Renmen}}: Kokushibo creates a seemingly endless stream of slashes capable of cutting down his intended target from long range.<ref>''Kimetsu no Yaiba Manga'': [[Chapter 172]], Page 10</ref>
   
*{{Nihongo|'''Tenth Form: Drilling Slashes - Moon Through Bamboo Leaves'''|{{Ruby|拾|じゅう}}ノ{{Ruby|型|かた}} {{Ruby|穿|せん}}{{Ruby|面|めん}}{{Ruby|斬|ざん}}・{{Ruby|蘿|ら}}{{Ruby|月|げつ}}|Jū no kata: Senmenzan - Ragetsu}}: Kokushibo creates a triple layered slash twister capable of mowing down his targets into three clean pieces.<ref>''Kimetsu no Yaiba Manga'': [[Chapter 172]], Pages 12</ref>
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*{{Nihongo|'''Tenth Form: Piercing Phase Slash-Ivy Moon'''|{{Ruby|拾|じゅう}}ノ{{Ruby|型|かた}} {{Ruby|穿|せん}}{{Ruby|面|めん}}{{Ruby|斬|ざん}}・{{Ruby|蘿|ら}}{{Ruby|月|げつ}}|Jū no kata: Senmenzan - Ragetsu}}: Kokushibo creates a triple-layered slash twister capable of mowing down his targets into three clean pieces.<ref>''Kimetsu no Yaiba Manga'': [[Chapter 172]], Pages 12</ref>
   
 
*'''Eleventh Form''':
 
*'''Eleventh Form''':
Line 151: Line 108:
 
*'''Thirteenth Form''':
 
*'''Thirteenth Form''':
   
*{{Nihongo|'''Fourteenth Form: Catastrophe - Tenman Crescent Moon'''|{{Ruby|拾|じゅう}}{{Ruby|肆|し}}ノ{{Ruby|型|かた}}{{Ruby|兇|きょう}}{{Ruby|変|へん}}・{{Ruby|天|てん}}{{Ruby|満|まん}}{{Ruby|繊|せん}}{{Ruby|月|げつ}}|Jūshi no kata: Kyōhen - Tenman Sengetsu}}: Kokushibo swings his sword and creates a chaotic vortex of powerful omni-directional slashes that destroys whatever is caught up within its attack radius.<ref>''Kimetsu no Yaiba Manga'': [[Chapter 173]], Page 11</ref>
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*{{Nihongo|'''Fourteenth Form: Calamity: Heaven's Full Crescent Moon'''|{{Ruby|拾|じゅう}}{{Ruby|肆|し}}ノ{{Ruby|型|かた}}{{Ruby|兇|きょう}}{{Ruby|変|へん}}・{{Ruby|天|てん}}{{Ruby|満|まん}}{{Ruby|繊|せん}}{{Ruby|月|げつ}}|Jūshi no kata: Kyōhen - Sainan: Tengoku no mikadzuki}}: Kokushibo swings his sword and creates a chaotic vortex of powerful omni-directional slashes that destroys whatever is caught up within its attack radius.<ref>''Kimetsu no Yaiba Manga'': [[Chapter 173]], Page 11</ref>
   
 
*'''Fifteenth Form''':
 
*'''Fifteenth Form''':
   
*{{Nihongo|'''Sixteenth Form: Moonbow - Half-Broken Moon'''|{{Ruby|拾|じゅう}}{{Ruby|陸|ろく}}ノ{{Ruby|型|かた}}{{Ruby|月虹|げっこう}}・{{Ruby|片|かた}}{{Ruby|割|わ}}れ{{Ruby|月|づき}}|Jūroku no kata: Gekkō - Katawarezuki}}: Kokushibo brings down a downward slash that then produces a powerful sixfold slash crashing down on his opponents. The attack itself is powerful enough to create several miniature craters where the slashes have landed.<ref>''Kimetsu no Yaiba Manga'': [[Chapter 173]], Page 3</ref>
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*{{Nihongo|'''Sixteenth Form: Lunar Rainbow- Half Fragmented Moon'''|{{Ruby|拾|じゅう}}{{Ruby|陸|ろく}}ノ{{Ruby|型|かた}}{{Ruby|月虹|げっこう}}・{{Ruby|片|かた}}{{Ruby|割|わ}}れ{{Ruby|月|づき}}|Jūroku no kata: Gekkō - Katawarezuki}}: Kokushibo brings down a downward slash that then produces a powerful sixfold slash crashing down on his opponents. The attack itself is powerful enough to create several miniature craters where the slashes have landed.<ref>''Kimetsu no Yaiba Manga'': [[Chapter 173]], Page 3</ref>
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  +
{{Battle Scroll Box
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|character=Kokushibo
 
|content='''[[Dimensional Infinity Fortress Arc]]'''
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*[[Muichiro Tokito, Genya Shinazugawa, Sanemi Shinazugawa and Gyomei Himejima vs Kokushibo]]}}
   
 
==Trivia==
 
==Trivia==
Line 161: Line 123:
 
*Kokushibo is the first Demon Slayer to become a Demon.
 
*Kokushibo is the first Demon Slayer to become a Demon.
 
*Kokushibo became a Demon in his early 20s and lived as such for additional 460+ years.
 
*Kokushibo became a Demon in his early 20s and lived as such for additional 460+ years.
  +
*The relationship between Yoriichi and Michikatsu parallels the mythology of the Shinto deities [[wikipedia:Amaterasu|Amaterasu]] and [[wikipedia:Tsukuyomi-no-Mikoto|Tsukuyomi]], respectively. Amaterasu is the most sacred of Shinto deities, the sun goddess. Tsukuyomi, the moon god, is her former husband and brother. After Tsukuyomi killed Uke Mochi, another shinto deity, Amaterasu refused to ever look upon him again, moving to another part of the sky and beginning the cycle of day and night. Like the deities, the siblings also feud and have chosen different paths (that of the Demon Slayer and the Demon), developing their respective breaths of the sun and moon.
   
 
==Quotes==
 
==Quotes==
*(In response to Muzan's reprimand) "''I... have nothing... to say... Ubuyashiki... cleverly... hid... himself...''"<ref>''Kimtesu no Yaiba Manga'': [[Chapter 98]], Page 15</ref>
+
*(In response to Muzan's reprimand) "''I... have nothing... to say... Ubuyashiki... cleverly... hid... himself...''"<ref>''Kimetsu no Yaiba Manga'': [[Chapter 98]], Page 15</ref>
*(To Akaza) "''You... went too far...''"<ref>''Kimtesu no Yaiba Manga'': [[Chapter 99]], Page 3</ref>
+
*(To Akaza) "''You... went too far...''"<ref>''Kimetsu no Yaiba Manga'': [[Chapter 99]], Page 3</ref>
*(To Kaigaku) "''Be thankful for the blood... You are not allowed to spill even a single drop on the ground... for if you do... your torso and head shall have a sorrowful parting.''"<ref>''Kimtesu no Yaiba Manga'': [[Chapter 145]], Page 5</ref>
+
*(To Kaigaku) "''Be thankful for the blood... You are not allowed to spill even a single drop on the ground... for if you do... your torso and head shall have a sorrowful parting.''"<ref>''Kimetsu no Yaiba Manga'': [[Chapter 145]], Page 5</ref>
*(In response to Akaza's death) "''You opened a path... to reach further heights... and you abandoned it... Very weak.''"<ref>''Kimtesu no Yaiba Manga'': [[Chapter 157]], Page 5</ref>
+
*(In response to Akaza's death) "''You opened a path... to reach further heights... and you abandoned it... Very weak.''"<ref>''Kimetsu no Yaiba Manga'': [[Chapter 157]], Page 5</ref>
*(Last Thought before Death) "''Have I lived hundred of years for this?... Was I so afraid of defeat that I became a monster?... Did I want to be strong even if it meant eating people?... Did I become this miserable creature because I didn't want to die?... No... Yoriichi... I just... I wanted to be like you...''"<ref>''Kimtesu no Yaiba Manga'': [[Chapter 176]], Pages 18-19</ref>
+
*(Last thought before death) "''Have I lived hundred of years for this?... Was I so afraid of defeat that I became a monster?... Did I want to be strong even if it meant eating people?... Did I become this miserable creature because I didn't want to die?... No... Yoriichi... I just... I wanted to be like you...''"<ref>''Kimetsu no Yaiba Manga'': [[Chapter 176]], Pages 18-19</ref>
   
 
{{References}}
 
{{References}}
   
 
==Navigation==
 
==Navigation==
{{Character navi}}
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{{Character Navigation}}[[ru:Кокушибо]]
[[ru:Кокушибо]]
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[[pl:Kokushibo]]
 
[[Category:Male Characters]]
 
[[Category:Male Characters]]
 
[[Category:Demon]]
 
[[Category:Demon]]
[[Category:Antagonists]]
 
 
[[Category:Twelve Demon Moons]]
 
[[Category:Twelve Demon Moons]]
 
[[Category:Upper Moons]]
 
[[Category:Upper Moons]]
 
[[Category:Antagonists]]
 
[[Category:Deceased]]
 
[[Category:Deceased]]
  +
[[Category:Former Demon Slayers]]

Revision as of 02:26, 13 February 2020

Kokushibo ( (こく) () (ぼう) Kokushibō?) was a member of the Twelve Demon Moons, holding the position of their most powerful, Upper Moon One. Before becoming a Demon, his human identity was Michikatsu Tsugikuni ( (つぎ) (くに) (みち) (かつ) Tsugikuni Michikatsu?),[1] a former Demon Slayer and the twin brother of Yoriichi Tsugikuni. He was also the ancestor of Muichiro Tokito.

Appearance

Kokushibo was a pale-skinned, tall man with long and spiky, black hair that he kept in a ponytail. He had three sets of eyes on his face with red sclera and yellow irises. His middle set of eyes featured the mark of Upper Moon One, and red markings resembling flames were seen on his face and neck.

Kokushibo wore a purple-and-black-patterned kimono and black hakama pants tied with a white cloth. He carried a sword at his waist that had eyes in the space between the tsuka wrapping of the handle of his sword. The guard and blade were also later revealed to have eyes and veins.

As a human, Kokushibo's appearance was nearly identical to his Demon form, with the exception of the number of eyes, his prominent eyebrows, and his notably less pale skin. His eyes had brown irises and normal, white sclera as a human.

After being beheaded by Sanemi Shinazugawa and Gyomei Himejima, Kokushibo evolved into a grotesque version of his Demon appearance, with protruding fangs, a pair of horns, and several sharp appendages from his body.

Personality

Kokushibo was often a reserved Demon, and with such little knowledge about the Upper Demon Moons, not much was originally known about him. He was an adamant rule-follower, punctual, and he showed a great deal of respect to the hierarchy of the Twelve Demon Moons - as seen at the Upper Moon Gathering.[2] Kokushibo was portrayed to be humble as well, and he did not hesitate to admit his failure or complain of any difficulty. He displayed a strong sense of loyalty towards Muzan Kibutsuji, with most of his actions being done with the sole purpose of fulfilling Muzan's goals.

Despite exhibiting outward reservation and humility, he was also rather cold; his words could be extremely harsh, especially when reprimanding individuals. His threats came off as nothing short of cruel and overwhelmingly serious, and he demanded absolute obedience.

He had a complex relationship with his human past. He showed something of warmth towards his descendant Muichiro Tokito, commending his skills and resolve, and moved to convert Muichiro into a Demon to spare his life. At the same time, he referred to Muichiro and his abilities as the natural result of his "cells" being passed down.

It was revealed that as a human, Kokushibo harbored an immense sense of jealousy towards his younger twin brother, Yoriichi Tsugikuni, for his natural talent and incredible abilities. These feelings of jealousy and contempt strengthened upon seeing his brother aged to an old man despite Yoriichi awakening his Demon Slayer Mark, which was to supposedly doom him to die at the age of 25. However, despite this immense jealousy, spite, and outright hatred he harbored for Yoriichi, he still deeply cared for and loved his brother, as seen when he was touched by Yoriichi treasuring the handmade flute he had made for him as children. Kokushibo shed genuine tears over his brother's death, and even went as far as keeping the flute itself for the following centuries as a memento to his beloved and hated younger brother.

In his duel against Gyomei Himejima, the Demon's banter suggested a fear of death. When Gyomei's marks appeared, Kokushibo preemptively bemoaned the loss of a talented fighter and urged him to become a Demon to continue honing his skills. He seemed genuinely surprised when Gyomei vehemently rejected his offer and called his mentality pathetic.[3]

Likely a result of his inferiority complex and his immense desire for strength, Kokushibo feared the prospect of suffering defeat. So much so, he became increasingly more aggressive and agitated when being pushed further into a corner, causing him to become more desperate in his attacks and the use of his Demon power. During his battle with the Pillars, he came to realize the steep price he had paid for the strength he so much desired, becoming an ugly monster far away from his idealized dream of a strong samurai just like his brother, symbolizing how much his deep ambitions and resentment had warped him for the worst. Later upon his death, he greatly lamented and regretted his choices in his life and began to openly question himself if the path he walked was truly the right one.

Abilities and Powers

Kokushibo was an extremely powerful swordsman, considered to be the strongest of the Twelve Demon Moons and the second strongest Demon in the series, just behind Muzan Kibutsuji. As one of the oldest Demons in the series, he had battled numerous Demon Slayers and obtained vast experience and knowledge of combat. He was able to easily decipher the techniques and skills of at least two Pillars and overwhelm them in battle. As a Breath user, he possessed tremendous levels of strength and reflexes that were further enhanced by his Demon physiology.

These overall abilities and skills allowed Kokushibo to defeat two Pillars with minimal effort and then fight on par against Gyomei, who was considered to be the most powerful Demon Slayer in the Demon Slayer Corps.[4] Even when Gyomei and Sanemi awakened their Demon Slayer Marks, which increased one's physical abilities way above their normal limit, he was still capable of holding his own against the both of them simultaneously.[5][6]

When he started using his more of his power, Kokushibo managed to overwhelm both Gyomei and Sanemi, both of whom were boosted by their Demon Slayer Marks.[7] As a testament to his might, it ultimately took a combo of attacks from Gyomei, Sanemi, and Muichiro to even land a significant injury on him. In the end, Kokushibo's loss was mostly a result of his sudden inability to regenerate and began crumbling due to realizing his mistake, rather than the skills of his opponents.[8]

Demon Abilities

  • Master Swordsman: Kokushibo was an extremely powerful and skilled swordsman. During his time as a human, he was one of the first Breath users.[9]
  • Immense Speed: Kokushibo possessed immense levels of speed, as shown when he outpaced Muichiro's Breath Techniques with great ease.[10] Muichiro himself stated that Kokushibo's speed was in another dimension compared to the Pillars.[11]
  • Immense Durability: Kokushibo had displayed immense physical durability as seen when despite Gyomei using both his flail and axe to attack both ends of his neck, it still didn't budge.[12] His neck was only severed thanks to both the combined efforts of both Gyomei and Sanemi putting all of their strength into forcing his neck to be sliced with Gyomei's axe.[13]
Kokushibo colored profile (human)

Kokushibo's Demon Slayer Mark.

  • Demon Slayer Mark: A special Mark worn by certain "awakened" Demon Slayers that resembles Demon Marks. Its specific abilities are unknown, but what is know is that it drastically improves the abilities of the Demon Slayer, making them much stronger, faster and able to react quicker than what they can achieve normally, though at the cost of being cursed to die at the age of 25. As a Demon, not only was Kokushibo no longer bound by the curse, but the Mark's abilities were enhanced even further than when he was a human.
  • See-Through World ( () (とお) () (かい) Sukitōru Sekai?): Similar to Tanjiro, Kokushibo has obtained the ability to see the "see-through world" through the use of his three pairs of eyes. This grants him superhuman kinetic vision similar to Kanao Tsuyuri, allowing him to see the muscles, blood flow, and joint movement of his opponents.[14] He can accurately predict and anticipate the movements and attacks of his opponents with this ability. He was also able to identify that Muichiro was his descendant,[15] immediately discern the skill level of Muichiro, Sanemi, and Gyomei with one look, and see that Genya Shinazugawa consumed Demons to gain strength by looking into his cellular structures.[16]
  • Enhanced Regeneration: Kokushibo possessed incredible regeneration, able to regenerate his ear[17] and right arm[18] after getting cut by Gyomei with no effort. Later, upon being decapitated by two Pillars, Kokushibo was able to regenerate his entire head and successfully conquered death by beheading,[19] a feat only accomplished by two other Demons: Akaza and Muzan. However, the process was slower than with Muzan and more unstable than Akaza, causing him to take on a monstrous form.
  • Demonic Transformation: Later, upon regrowing his head while battling Gyomei and Sanemi, Kokushibo was able to transform himself into a demonic, monstrous form resembling a spider that presumably enhanced all of his abilities and powers.[20]

Swordsmanship

  • Enhanced Breath Techniques: As a Demon, Kokushibo's Breathing Techniques has been enhanced to heights beyond even what Pillars can achieve. His former position was analogous to a Pillar prior to becoming a Demon, as well as his Demon Slayer Mark and being an Upper Moon, showing that his skill and efficiency with Full Focus Breathing is almost unparalleled, with only his naturally-gifted brother surpassing him.
  • Blood Demon Art ( (けっ) () (じゅつ) Kekkijutsu?):[21] Flesh Sword: Although the specific name of the Blood Demon Art is unknown, Kokushibo reveals that he had detached some of his own flesh and shaped it into the katana that he uses in battle.[22] The blade possessed numerous eyes in the blade, handle, and guard, allowing him to have an increased range of vision while using it in battle. Since the blade was also created from his flesh, it could easily regenerate if destroyed or chipped. This ability is shown when the blade returns to its original shape in his battle with Gyomei. Kokushibo also displayed the ability to freely manipulate the form of the blade, growing three additional blades from the original blade to increase its reach and further increase its size. Later, Kokushibo also displayed the ability to grow and protrude multiple blades from his own body, allowing him to perform a multitude of slashes from them without a swinging motion. This attack was powerful enough to easily blow away two Pillars and destroy Genya's Blood Demon Art, as well as slice in half numerous columns in the room, from just its activation; the full usage of the Blood Demon Art being unknown.

Breath of the Moon ( (つき) () (きゅう) Tsuki no Kokyū?): Like Kaigaku, Kokushibo was a Demon with a Breath style. His Breath of the Moon was one of the most dangerous sword styles displayed thus far. Sanemi noted that each and every slash and cut he made using this breath style was surrounded by chaotic, crescent moon-like blades that constantly changed size and length, increasing the range of his already powerful attacks.[23] Kokushibo himself had continued to develop this breath style and had created multiple techniques over the centuries he had lived.

  • First Form: Dark Moon - Evening Palace ( (いち) (かた) (やみ) (づき) (よい) (みや) Ichi no kata: Yamizuki - Yoi no Miya?): Kokushibo draws his sword and slashes swiftly in a single motion, like with all Breath of the Moon techniques, numerous chaotic crescent-shaped blades originate from the slash. This technique resembles Iaido.[24]
  • Second Form: Pearl Flowers Moongazing ( () (かた) (しゅ) () (ろう) (げつ) Ni no kata: Shuka no Rōgetsu?):[25]
  • Third Form: Loathsome Moon - Chains ( (さん) (かた) (えん) () (づき) (つが) San no kata: Enkizuki - Tsugari?): Kokushibo swings his sword rapidly in two crescent slashes, from which a storm of smaller crescents spread. This technique causes huge destruction in a small area.[26]
  • Fourth Form:
  • Fifth Form: Moon Spirit Calamitous Eddy ( () (かた) (げっ) (ぱく) (さい) () Go no kata: Geppaku Saika?): Kokushibo makes multiple curved slashes layered over one another resembling a rising vortex. Numerous chaotic blades originate from these slashes. Kokushibo performed this attack without swinging his blade.[27]
  • Sixth Form: Perpetual Night, Lonely Moon - Incessant ( (ろく) (かた) (とこ) () () (げつ) () (けん) Roku no kata: Tokoyo Kogetsu - Muken?): Kokushibo releases a wild storm of slashes in multiple directions. This technique was powerful enough to not only slice up multiple Pillars around him but also overwhelm the Wind Pillar Sanemi Shinazugawa.[28]
  • Seventh Form: Mirror of Misfortune - Lunar Shine ( (しち) (かた) (やっ) (きょう) (づき) () Shichi no kata: Yakkyō - Zukibae?): Kokushibo swings his sword in a powerful frontal slash that then creates a multi-directional frontal assault, powerful enough to create several deep craters in the ground and push back at least two Pillars.[29]
  • Eighth Form: Lunar Ouroboros ( (はち) (かた) (げつ) (りゆう) (りん) () Hachi no kata: Getsuryū Rinbi?): Kokushibo uses a direct frontal attack that creates a single gigantic slash.[30]
  • Ninth Form: Descending Moon-Perpetual Phases ( () (かた) (くだ) (づき) (れん) (めん) Ku no kata: Kudarizuki Renmen?): Kokushibo creates a seemingly endless stream of slashes capable of cutting down his intended target from long range.[31]
  • Tenth Form: Piercing Phase Slash-Ivy Moon ( (じゅう) (かた) 穿 (せん) (めん) (ざん) () (げつ) Jū no kata: Senmenzan - Ragetsu?): Kokushibo creates a triple-layered slash twister capable of mowing down his targets into three clean pieces.[32]
  • Eleventh Form:
  • Twelfth Form:
  • Thirteenth Form:
  • Fourteenth Form: Calamity: Heaven's Full Crescent Moon ( (じゅう) () (かた) (きょう) (へん) (てん) (まん) (せん) (げつ) Jūshi no kata: Kyōhen - Sainan: Tengoku no mikadzuki?): Kokushibo swings his sword and creates a chaotic vortex of powerful omni-directional slashes that destroys whatever is caught up within its attack radius.[33]
  • Fifteenth Form:
  • Sixteenth Form: Lunar Rainbow- Half Fragmented Moon ( (じゅう) (ろく) (かた) 月虹 (げっこう) (かた) () (づき) Jūroku no kata: Gekkō - Katawarezuki?): Kokushibo brings down a downward slash that then produces a powerful sixfold slash crashing down on his opponents. The attack itself is powerful enough to create several miniature craters where the slashes have landed.[34]

Trivia

  • Kokushibo is the older twin brother of the Breath of the Sun user who almost killed Muzan, Yoriichi Tsugikuni.
  • Kokushibo is the first Demon Slayer to become a Demon.
  • Kokushibo became a Demon in his early 20s and lived as such for additional 460+ years.
  • The relationship between Yoriichi and Michikatsu parallels the mythology of the Shinto deities Amaterasu and Tsukuyomi, respectively. Amaterasu is the most sacred of Shinto deities, the sun goddess. Tsukuyomi, the moon god, is her former husband and brother. After Tsukuyomi killed Uke Mochi, another shinto deity, Amaterasu refused to ever look upon him again, moving to another part of the sky and beginning the cycle of day and night. Like the deities, the siblings also feud and have chosen different paths (that of the Demon Slayer and the Demon), developing their respective breaths of the sun and moon.

Quotes

  • (In response to Muzan's reprimand) "I... have nothing... to say... Ubuyashiki... cleverly... hid... himself..."[35]
  • (To Akaza) "You... went too far..."[36]
  • (To Kaigaku) "Be thankful for the blood... You are not allowed to spill even a single drop on the ground... for if you do... your torso and head shall have a sorrowful parting."[37]
  • (In response to Akaza's death) "You opened a path... to reach further heights... and you abandoned it... Very weak."[38]
  • (Last thought before death) "Have I lived hundred of years for this?... Was I so afraid of defeat that I became a monster?... Did I want to be strong even if it meant eating people?... Did I become this miserable creature because I didn't want to die?... No... Yoriichi... I just... I wanted to be like you..."[39]
  1. Kimetsu no Yaiba Manga: Chapter 165, Page 5
  2. Kimetsu no Yaiba Manga: Chapter 98
  3. Kimetsu no Yaiba Manga: Chapter 170, Pages 6-12
  4. Kimetsu no Yaiba Manga: Chapter 169, Pages 2-18
  5. Kimetsu no Yaiba Manga: Chapter 170, Pages 13-19
  6. Kimetsu no Yaiba Manga: Chapter 171, Pages 5-14
  7. Kimetsu no Yaiba Manga: Chapter 171, Page 15
  8. Kimetsu no Yaiba Manga: Chapter 176, Pages 15-17
  9. Kimetsu no Yaiba Manga: Chapter 128, Page 14
  10. Kimetsu no Yaiba Manga: Chapter 165, Pages 8-13
  11. Kimetsu no Yaiba Manga: Chapter 165, Page 15
  12. Kimetsu no Yaiba Manga: Chapter 175, Pages 15-17
  13. Kimetsu no Yaiba Manga: Chapter 175, Pages 20-21
  14. Kimetsu no Yaiba Manga: Chapter 165, Page 1
  15. Kimetsu no Yaiba Manga: Chapter 165, Page 6
  16. Kimetsu no Yaiba Manga: Chapter 166, Page 6
  17. Kimetsu no Yaiba Manga: Chapter 171, Page 10-13
  18. Kimetsu no Yaiba Manga: Chapter 173, Pages 12-13
  19. Kimetsu no Yaiba Manga: Chapter 176, Page 10
  20. Kimetsu no Yaiba Manga: Chapter 176, Page 10
  21. Kimetsu no Yaiba Manga: Chapter 175, Page 14-17
  22. Kimetsu no Yaiba Manga: Chapter 169, Page 11
  23. Kimetsu no Yaiba Manga: Chapter 167, Page 5
  24. Kimetsu no Yaiba Manga: Chapter 165, Pages 14-15
  25. Kimetsu no Yaiba Manga: Chapter 169, Pages 16-17
  26. Kimetsu no Yaiba Manga: Chapter 168, Page 20
  27. Kimetsu no Yaiba Manga: Chapter 167, Page 2-3
  28. Kimetsu no Yaiba Manga: Chapter 167, Pages 14-15
  29. Kimetsu no Yaiba Manga: Chapter 172, Page 7
  30. Kimetsu no Yaiba Manga: Chapter 172, Page 8
  31. Kimetsu no Yaiba Manga: Chapter 172, Page 10
  32. Kimetsu no Yaiba Manga: Chapter 172, Pages 12
  33. Kimetsu no Yaiba Manga: Chapter 173, Page 11
  34. Kimetsu no Yaiba Manga: Chapter 173, Page 3
  35. Kimetsu no Yaiba Manga: Chapter 98, Page 15
  36. Kimetsu no Yaiba Manga: Chapter 99, Page 3
  37. Kimetsu no Yaiba Manga: Chapter 145, Page 5
  38. Kimetsu no Yaiba Manga: Chapter 157, Page 5
  39. Kimetsu no Yaiba Manga: Chapter 176, Pages 18-19


Navigation

[v · e · ?]
Demon Slayer Corps
Ubuyashiki Family: Kagaya Ubuyashiki · Amane Ubuyashiki · Hinaki Ubuyashiki · Nichika Ubuyashiki · Kiriya Ubuyashiki · Kuina Ubuyashiki · Kanata Ubuyashiki
Hashira: Giyu Tomioka · Mitsuri Kanroji · Obanai Iguro · Sanemi Shinazugawa · Gyomei Himejima · Kyojuro Rengoku · Tengen Uzui · Muichiro Tokito · Shinobu Kocho · Kanae Kocho · Sakonji Urokodaki · Jigoro Kuwajima · Shinjuro Rengoku
Demon Slayers: Tanjiro Kamado · Zenitsu Agatsuma · Inosuke Hashibira · Genya Shinazugawa · Kanao Tsuyuri · Murata · Ozaki · Masachika Kumeno · Yoriichi Tsugikuni
Butterfly Mansion: Aoi Kanzaki · Sumi Nakahara · Kiyo Terauchi · Naho Takada · Goto
Other/Associates: Sabito · Makomo · Suma · Makio · Hinatsuru · Masao Maeda
Demons
Demons: Muzan Kibutsuji · Nezuko Kamado · Tamayo · Yushiro · Chachamaru · Susamaru · Yahaba · Temple Demon · Hand Demon · Tongue Demon · Horned Demon · Swamp Demon · Serpent Demon · Spider Demon (Father) · Spider Demon (Mother) · Spider Demon (Son) · Spider Demon (Daughter)
Twelve Kizuki: Kokushibo · Doma · Akaza · Nakime · Hantengu · Gyokko · Gyutaro · Daki · Kaigaku · Enmu · Rokuro · Wakuraba · Mukago · Rui · Kamanue · Kyogai
Civilians/Other
Kamado Family: Tanjuro Kamado · Kie Kamado · Takeo Kamado · Hanako Kamado · Shigeru Kamado · Rokuta Kamado · Sumiyoshi Kamado · Suyako Kamado · Sumire Kamado
Swordsmith Village: Tecchin Tecchikawahara · Hotaru Haganezuka · Kozo Kanamori · Kotetsu · Tetsuido
Tsuzumi Mansion: Teruko · Shoichi · Kiyoshi
Entertainment District: Koinatsu · Omitsu
Other: Akeno Tsugikuni · Senjuro Rengoku · Ruka Rengoku · Yuichiro Tokito · Kotoha Hashibira · Hisa · Saburo · Kazumi · Satoko · Tokie · Rei · Keizo · Koyuki · Takaharu · Toyo · Uta · Shizu Shinazugawa · Kyogo Shinazugawa · Tsutako Tomioka
Animals: Chachamaru · Kasugai Crows · Ninju
Descendants/Reincarnations
Kamado Family: Kanata Kamado · Sumihiko Kamado
Agatsuma Family: Toko Agatsuma · Yoshiteru Agatsuma
Other: Aoba Hashibira · Tojuro Rengoku · Tenma Uzui · Giichi Tomioka · Sanehiro Shinazugawa
Spin-Off/Anime Original Characters
Civilians: Yae · Taro · Fuku · Tomi
Demons: Matazo · Hairo · Flute Demon · Ubume · Slasher