User:Elixirr/sandbox

Overall Abilities
As the highest ranking member of the Twelve Kizuki, Kokushibo is an extraordinarily powerful demon, second only to the Demon King Muzan Kibutsuji himself. He has battled countless Demon Slayers and has amassed vast experience and knowledge over his near 500-year long life. His abilities have been refined to the highest level as he is not only a master of Total Concentration Breathing, but also a marked individual who has gained access to the Transparent World, as well as the demon that possesses the highest concentration of Muzan's blood in the organization.

His overwhelming power is first displayed when he slashes off Upper Rank Three, Akaza's arm before he could even react, and it is later stated by Doma that Akaza would never be able to surpass the both of them despite having improved his skills for 113 years prior to their meeting. During the Infinity Castle Arc, Kokushibo manages to effortlessly overwhelm the Mist Hashira, Muichiro Tokito, a prodigy who was previously shown to be capable of singlehandedly defeating Gyokko, Upper Rank Five, while injured. Later, Kokushibo easily slices off Muichiro's hand before he could react and is able to nonchalantly catch his sword mid-swing with his bare hand and proceeds to stab Muichiro with it.

Genya Shinazugawa, who played a major role in the defeat of Upper Rank Four, Hantengu, also stood no chance against the Upper Rank, being sliced into pieces with little resistance. Although the Wind Hashira, Sanemi Shinazugawa, was able to fair better than the former two due to his greater experience and capabilities, he was also quickly overpowered when Kokushibo decided to try harder, making deep cuts all over the Hashira's body that would've killed an average Hashira according to Kokushibo. Even when Gyomei Himejima arrived and momentarily stalled the battle by matching his strength and speed, Kokushibo quickly forced the Stone Hashira to use his Demon Slayer Mark. As further testament to his overwhelming power, Kokushibo could simultaneously hold back Sanemi and Gyomei, even when the two had their physical abilities increased by their Demon Slayer Marks.

Ultimately, it took the combined effort and abilities of Gyomei, Sanemi, Muichiro, and Genya, the former three who were marked, to even land a significant injury on him. Moreover, Gyomei and Muichiro also needed to see into the Transparent World. Despite that, the only way that the Demon Slayers could win was to immobilize him, which took the lives of Muichiro and Genya, the former sacrificing himself to leave Kokushibo in the open and the latter needing to utilize a new Blood Demon Art to restrain the Upper Rank. Even then, the Demon Slayers still met resistance due to Kokushibo's unnatural durability and needed to turn their blades bright red in order to behead him.

Despite all that, he managed to regrow his head through sheer will, making him virtually invincible with the exception of the sun. Kokushibo's demise is left up to interpretation. It can be argued that Kokushibo only fell due to the realization of how ugly he had become in his pursuit of strength causing him to lose the will to fight and hence forcefully stopped his own regeneration. Alternatively, it can also be argued that Kokushibo did not lose the will to fight, but only lost because he could not regenerate nor fight back in the first place, and not because he lost the will to fight.

All in all, Kokushibo's defeat required the combined efforts of three powerful Marked Hashira (two of which awakened the Transparent World) with Bright Red Blades, a Demon Slayer capable of using Blood Demon Arts, and even then, the battle was narrowly won and cost the Demon Slayers' two lives, a feat that truly exemplifies the might of Upper Rank One.

Indomitable Will: Solely because of his goal to surpass his younger twin brother, Yoriichi Tsugikuni, Kokushibo possesses tremendous willpower and an indomitable spirit. Despite his decapitation at the hands of Gyomei and Sanemi's Bright Red Nichirin flail and sword, he forced his regeneration to evolve, and regrew his own head along with a myriad of enhancements, all because he didn't allow himself to die until he accomplished his goal.

Tactical Intellect: As a talented swordsman who has existed for nearly five centuries, Kokushibo has experienced countless battle situations and threats which he has learnt to overcome. This was displayed during his battle with three Hashira and Genya, where he was able to adapt to their special and unique fighting styles and tactics nigh instantaneously after witnessing it. After Muichiro unleashed his first attack against the Upper Rank, he was able to determine he was a user of Mist Breathing, a talented one at that. This was further accentuated through Kokushibo being able to take on Sanemi and Gyomei simultaneously despite both of them being marked and being users of different Breathing Styles, meaning he’d have to deal with 2 vastly different opponents at once, which he did so successfully, even overwhelming them multiple times.

Demon Abilities
Biological Absorption: Kokushibo possesses the ability to absorb human and demon bodies through physical contact. Although this trait has never been displayed, it is stated that Kokushibo would absorb the demons that challenged him and were defeated. It can likely be assumed that he uses this method as a faster alternative of consuming humans as well.

Flesh Manipulation: Like all demons, Kokushibo possesses the ability to manipulate his own flesh to a high degree. In terms of changing his body, he can alter his face into possessing two more pairs of eyes while also elongating his forehead. Most notoriously, he uses this ability to create an extremely durable and sharp katana, complete with a tsuba and its own scabbard. Because of this, his katana can never be destroyed as he can regenerate it like he would with normal wounds. After undergoing a transformation after being decapitated, Kokushibo greatly morphed his body to adopt a more beastly and grotesque appearance, growing appendages, thin tubes, sharp mandibles and horns.
 * Sword Manipulation: Due to his katana being made of his own living flesh, Kokushibo is able to easily regenerate parts of the blade should it be destroyed or damaged as he quickly as healing his body, which was shown numerous times when the blade returns to its original shape when Gyomei or Sanemi damaged it with their attacks. Furthermore, he can freely manipulate the form of the blade, shown when he grew three additional blades from the original blade to increase its reach and further increase its size, turning it into a weapon similar to the Shichishito (Seven-Branched Sword). Later, Kokushibo also displayed the ability to grow and protrude dozens of blades from his own body, allowing him to perform a multitude of slashes from them without a swinging motion. From its activation alone, Kokushibo not only managed to blow away Sanemi and Gyomei, but slice apart Muichiro, Genya, the trees rooting him down, as well as numerous pillars in his surroundings.

Immense Regeneration: Kokushibo possesses one of the most powerful regenerative abilities in existence, second only to the Demon King, Muzan Kibutsuji. His regeneration speed is even faster than Akaza and Doma, regrowing his ear and right shoulder effortlessly. Later, after being decapitated by two marked Hashira, Kokushibo is able to regenerate his entire head and successfully conquered death by beheading after being decapitated by Nichirin Swords, a feat considered impossible for demons and only accomplished by two other demons: Akaza and the Demon King himself. However, while the speed at which he regrew his head was far faster than the former, his regeneration after being decapitated became unstable, causing him to take on a monstrous visage.

Monstrous Transformation: Later, after re-growing his head while battling Gyomei and Sanemi, Kokushibo undergoes a transformation that causes him to take on a more monstrous and grotesque form, with protruding fangs and mandibles, large white horns on the front and back of his head, pointed nails, red outgrowths on his face, his pupils looking at different directions, shorter and messier hair, several thin tubes poking out of his body, and numerous black and red scorpion tail-like appendages haphazardly sprouting all across his entire body. Kokushibo states that any attacks thrown at him in this state would be meaningless, and that the sun would be the only way to defeat him.

Demon Slayer Abilities
Demon Slayer Mark: Kokushibo awakened his mark when he trained under Yoriichi. The Demon Slayer Mark drastically improves the abilities of an individual, making them much stronger and faster than what they can achieve normally, though at the cost of being cursed to die at the age of 25. However, by turning into a demon and gaining immortality, Kokushibo is no longer bound by the curse.
 * Transparent World: Similar to Yoriichi, Kokushibo not only has the ability to see into the Transparent World, but is also able to always use it. This allows him to see the muscles, blood flow, and joint movement of his opponents. 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, immediately discern that Genya consumed demons to gain strength, as well as tell the strength of Muichiro, Sanemi, and Gyomei with one look, even being able to tell that the latter two's physical body and techniques are at their peak.

Physical Abilities
Immense Durability: Due to having an extremely high concentration of Muzan's blood, Kokushibo possesses incredibly high durability. His neck is so resistant that a marked Sanemi barely made a cut despite swinging his sword with all his might. Furthermore, Gyomei's massive spiked iron ball is similarly ineffective in damaging his neck despite the Stone Hashira slamming his flail on Kokushibo's neck from above and the heat absorbed from the sun searing him. Even when a marked Sanemi slammed his katana down onto Gyomei's spiked iron ball, the Demon Slayers only successfully sliced off Kokushibo's head when both of their weapons turned bright red, which had to hamper his regeneration and burn his flesh.

Immense Speed & Reflexes: Kokushibo possesses immense levels of speed far surpassing that of all his other Upper Rank brethren, as first shown when he slashed off Akaza's arm before he, or any of the other Upper Rank demons present, realized. He displays his phenomenal speeds on multiple occasions while fighting. Firstly, he is able to effortlessly outpace Muichiro's Mist Breathing techniques, moving so fast he appears to teleport. This caused Muichiro himself to state that Kokushibo's speed was in another dimension compared to his own, despite having his own speed being amplified from the Demon Slayer Mark. When Genya uses his shotgun to shoot the Upper Rank from a distance, Kokushibo manages to suddenly appear behind him before the bullets could reach, before slicing his arm off the moment he arrived. Afterwards, he slashes off his other arm and his torso so fast that his arms didn't even appear to move.

Later when his bout with Sanemi began, he could easily keep up with his techniques and movements despite the latter having to exert himself to the limit in order to stay alive. When Sanemi uses his brother's shotgun to shoot at the Upper Rank, Kokushibo is quick enough to block the bullets even when the shotgun is at point-blank range. After feeling the need to try harder, Kokushibo subdues the Wind Hashira with a single technique that was fast enough that he couldn't evade in time, delivering a multitude of cuts and slashes all across his body. Against Gyomei, the strongest Hashira of the current generation, Kokushibo is still more than capable of keeping up with his unorthodox attacks. Even after both Hashira became marked, an enraged Kokushibo could unleash sword attacks that even they couldn't fully react to and continuing to out-pace them with his techniques. His imperceptible speed posed such a threat towards his opponents that Muichiro had to sacrifice a leg in order to stop the Upper Rank from moving so that Genya can fully immobilize him with his Blood Demon Art. After transforming, Kokushibo is able to move so fast, he appears as a blur to a marked Gyomei and Sanemi when they attempted to finish him off.

Immense Strength: As a transformed Demon Slayer who has gained the Demon Slayer Marks, on top of having the highest concentration of Muzan's blood, Kokushibo possesses immense physical strength. He is able to crack the ground just by stomping on Sanemi's sword, and is capable of wielding a gigantic sword much heavier than a regular katana and swinging it incessantly at immense speeds without rest or much effort. After transforming, Kokushibo was able to slice off Muichiro's arm with his bare hands akin to a blade.

Unlimited Stamina & Endurance: Like all demons, Kokushibo possesses infinite stamina and vitality, never tiring and always remaining in optimal physical and mental condition all the time as well as being able to endure waves of onslaught as if it were nothing. Despite having his limbs and whole chunks of his body being repeatedly torn off and destroyed, he never once showed a sign of pain or agony. Even when his head was being crushed by Gyomei Himejima's spiked iron ball, he remained steadfast.

Supernatural Abilities
Extrasensory Perception: Kokushibo can detect the presence of others outside his normal range of perception, as shown when he dodged Genya's gunshots and appeared directly behind him despite Kokushibo looking at the opposite direction. Kokushibo also seems to be able to keep track of the locations of his peers around the Infinity Castle, evident as he no longer felt Akaza's presence when he died.

Menacing Aura: Kokushibo possesses a menacing and overwhelming presence that startled even Akaza, the holder of Upper Rank Three and an extremely vindictive and aggressive demon, into silence and temporarily made Muichiro Tokito, a Hashira who has faced and defeated an Upper Rank on his own, lose the will to fight and caused his body to tremble uncontrollably.

Overall Abilities
As the holder of the second highest position in the Twelve Kizuki, Doma is an exceptionally powerful demon, being the second highest ranking member in the Twelve Kizuki and the third strongest demon in existence. His combination of combative prowess and his potent cryokinetic Blood Demon Art in battle is powerful enough to overwhelm and defeat the Insect Hashira, Shinobu Kocho, without any difficulty, and he is also noted to have defeated Kanae Kocho, the late Flower Hashira, in the past. Afterwards, Doma could take on both Inosuke and Kanao, who were on par with the Hashira, simultaneously without much effort either.

According to Doma, Akaza, who holds the rank of Upper Three, would have no chance in defeating him in battle. Moreover, Doma was able to surpass Akaza in a shorter period of time, showcasing the immense power gap between the two demons. As further credence to Doma's immense power, he rarely fights seriously and instead adopts a casual and carefree attitude even in life-and-death situations against the most powerful Demon Slayers, only ever becoming serious when his life is in serious danger, such as when the deadly effects of Shinobu's poisons became apparent.

Apathy: Doma is diagnosed as clinically apathetic, unable to experience human emotions. Despite this, he maintains a friendly and carefree façade that deceives all but the most astute observers. Kanao is the only person who can see through his façade, thanks to her exceptional eyesight. She believes that Doma impersonates emotions in the hopes that he could eventually acquire the ability to feel them himself, a concept entirely foreign to him. Even in his childhood, Doma exhibited little to no emotion. When his mother killed his father before taking her own life in front of him, he remained unaffected by the traumatising event; his only reaction was annoyance over the blood that was making the room stuffy.

This inability to feel emotions has become an advantage for Doma, as this allows him to calmly process, understand and analyze any situation he is faced with without being hampered by emotions, allowing him to easily and quickly come up with any solution for any adversary. Although, after his death, he seemed to have developed feelings for Shinobu Kocho, making it the first time he actually shows true emotion.

Keen Intellect: Doma is exceptionally intelligent, which he displayed on multiple occasions. While in a fast-paced brawl with Kanao, he was able to process and deduce her abilities, surmising that it was her superhuman eyesight that allowed her to parry and dodge his ice attacks and immediately develop a strategy to counter it. In another instance, when he left Kanao and Inosuke to fight his ice clones, he construed that Inosuke had an acute sense of touch just by observing his behavior when near his ice techniques.

It is also implied that Doma was able to trick and deceive all of his followers, allowing him to kill and eat them. He was able to keep this up for over a century with almost complete infallibility. Doma also possesses incredible memory, being able to remember even the most insignificant details from back when he was human, which was over a century ago.

Demon Abilities
Biological Absorption: Doma briefly displayed the ability to absorb human bodies through physical contact, shown when he completely broke down and assimilated Shinobu's body within only a few seconds of killing her. He mostly uses this ability as a faster alternative of consuming humans during battle.

Immense Regeneration: As an Upper Rank demon, Doma possesses one of the most advanced and powerful regenerative healing factors in existence. When Akaza punched off both his lower jaw and the upper portion of his head, he instantly healed with ease, even considering the fatal attack to be a friendly gesture. Doma also took mere seconds to recover from Shinobu's onslaught of fatal Wisteria poison attacks and from a deep slash in his abdomen which caused his guts to spill out. Even when Doma absorbed Shinobu's body and ingested over 37 kilograms worth of poison, approximately 700 times more than the lethal amount needed to kill an average demon, it still took a considerable amount of time before it began to have any adverse effect on him.
 * Reactive Adaptation: During his battle against Shinobu, he is able to break down and render all of the various poison mixtures Shinobu injected into him useless, immediately developing antibodies to her poison without much trouble. Shinobu herself was shocked at how fast Doma built a resistance to her normally fatal poison.

Physical Abilities
Immense Durability: As an Upper Rank demon who has assimilated a huge amount of Muzan's blood, Doma has an exceptionally durable body. This is shown when Kanao had difficultly slicing Doma's neck even when his body was falling apart due to the extreme dosage of poison he received. Kanao only succeeded in decapitating the Upper Rank when Inosuke used his swords to push her blade through Doma's neck.

Immense Speed & Reflexes: Doma possesses inhuman movement speed and reflexes, being able to move so fast he appears to teleport. Due to their rankings, it is strongly suggested that Doma is faster than Akaza, who was able to keep up with a Marked Giyu, and Gyutaro who was able to keep up with and overpower Tengen, the fastest runner among this generation's Hashira. He first displayed his immense speed during the Upper Rank meeting, where he appeared to teleport to Gyokko, which caught him off guard. Later, when Akaza appeared behind him and destroyed his head, Doma claimed that he could've easily evaded it if he wanted to, but didn't do so on purpose as he wanted to get along with him.

His imperceptible speed was further testified when he sliced a woman to pieces after Shinobu, the fastest Hashira Doma has met, brought her away from his attack range, taking the Insect Hashira a while to register the attack. Moreover, Doma was shown to be able to keep up with Shinobu's imperceptible speed for the majority of the fight. More impressively, Doma was able to deliver a deep cut to Shinobu before she could even react, effectively blitzing her. Against Kanao, a Hashira-level Demon Slayer, Doma was able to easily dodge her Crimson Hanagoromo technique while still busy absorbing Shinobu, and later managed to move so fast he appeared to teleport behind her, nearly decapitating the Demon Slayer's head.

Later on in the fight, Doma managed to completely blitz Kanao, running up to her from a considerably far distance, stealing her Nichirin katana while she was still gripping onto it, and returning to his original spot so fast that Kanao, despite possessing superhuman vision, couldn't react to, let alone perceive the Upper Rank's movements, even taking several seconds to comprehend and realize what just happened. Similarly, Doma blitzed Inosuke, this time, stealing his mask without he and Kanao realizing it until several seconds later. Due to how casual Doma was when he performed the aforementioned feats, it is implied that Doma could've instantly blitzed and killed both Kanao and Inosuke had he taken the fight more seriously.

Unlimited Stamina & Endurance: Doma possesses absolute and infinite stamina and vitality, never tiring and always remaining in optimal physical and mental condition all the time as well as being able to endure waves of onslaught as if it were nothing. He showed almost complete immunity to being repeatedly violently attacked by his fellow Upper Rank, Akaza, having his eyes slashed out by Inosuke, being repeatedly poisoned and stabbed by Shinobu, having his stomach slashed open by Kanao and inflicting various forms of extreme self-harm to himself. Doma never once expressed the slightest bit of pain, discomfort and panic at being wounded so grievously, having been able to nonchalantly and calmly continue fighting, talking or doing whatever else he is doing as if nothing is happening.

Supernatural Abilities
Extrasensory Perception: Doma possesses extraordinary sensory abilities which allow him to detect things outside the normal range of perception, as shown when he could perceive attacks even from places he is not looking at, allowing him to nullify the effectiveness of sneak attacks. Later, Doma was capable of detecting Akaza's transformation into a demon immune to decapitation by Nichirin Swords despite being extremely far away from him.

Overall Abilities
As the holder of the third highest position in the Twelve Kizuki, and being the fourth strongest demon out of everyone overall, Akaza is an exceptionally powerful demon, having been able to singlehandedly defeat Kyojuro Rengoku and numerous Hashira as well as countless Demon Slayers in the past. Akaza possesses incredible abilities and attributes, most notably his martial arts prowess, which can outmatch the swordsmanship of even the most skilled Demon Slayers, and his ability to sense Fighting Spirit which allows him to predict his opponent's attacks and discern their weaknesses, making him nigh-unbeatable if they are unable to create a countermeasure against this ability.

During the events in the Infinity Castle, he was able to fight and overwhelm both Tanjiro and Giyu during their fight, even when they were both Hashira-level swordsmen who have utilized their Demon Slayer Marks and when Tanjiro had access the Transparent World. Akaza was only defeated with Tanjiro awakening the Selfless State which directly countered his extrasensory perception. Even after being decapitated, Akaza managed to regrow his head through sheer willpower and his extraordinary regenerative abilities, continuing to attack Tanjiro and Giyu. If not for Akaza losing his will to continue fighting, he would have certainly killed both Demon Slayers as he had already rendered them extremely fatigued. As a further testament to his might, he attainted the Upper Rank Three title and became the fourth strongest demon in existence without killing or eating any women, which would've hindered his growth as a demon drastically according to Doma.

As a child without martial arts training, Akaza could defeat and knock grown men unconscious on his own. At the age of 18, after learning the Soryu Style from Keizo, he was capable of singlehandedly annihilating 67 trained adult swordsmen with his bare fists, a feat which even Muzan thought was performed by a demon.

Indomitable Will: Akaza possesses an immense willpower and undaunted spirit. Despite being beheaded by Tanjiro's Nichirin Sword, he refused to disintegrate and die, instead forcing his headless body to keep fighting. He pushed his regeneration to evolve to the point where he could regrow his head, all because he simply refused to allow himself to lose. Even before he became a demon, he would relentlessly take blows from opponents way bigger than him and receive countless beatings all because of his goal to heal his sick father.

Tactical Intellect: With over a century of combat experience and martial arts training under his belt, Akaza is able to fight effectively with foresight and tactical intelligence. This even surprised Giyu, who stated that Akaza could instantly evolve and adapt to any attack or technique that he uses, to the point that he can predict when his opponents will strike and how to counter them with equal power. Before he became a demon, Akaza has displayed natural aptitude in martial arts, shown when he was capable of beating up trained swordsmen from neighboring dojos while still in the midst of learning Keizo's Soryu Style. This is further exemplified when he could fight and defeat grown men without martial arts training.

Demon Abilities
Immense Regeneration: Akaza possesses one of the most incredible regenerative abilities in the series due to assimilating a massive amount of Muzan's blood, which he displayed constantly. He was capable of instantly recovering from slash wounds both minor and severe and even limbs slashed off by his opponents with little effort. During his battle against Giyu and Tanjiro, his regeneration evolved even further as he didn't die even after having his head cut off by a Nichirin Sword and then completely regrow a new one afterwards, a feat considered impossible for demons and one only Muzan, the Demon King, had accomplished beforehand. Even without a head, Akaza's regeneration speed was still nigh-instantaneous.

Furthermore, Akaza seems to be capable of finely controlling his own regeneration speed. This was shown on multiple occasions, such as when Kyojuro sliced Akaza's arm in two, where the Upper Rank slowed down his own recovery speed to show off his sliced arm only to heal the injury instantaneously, as well as when Akaza didn't heal a slash wound Kyojuro inflicted on his chest only for his regeneration to take effect as he placed his hand on it, as a demonstration that his attacks could never truly harm him as a demon. Most prominently, Akaza purposefully stopped his own regeneration after he lost the will to fight and accepted his defeat.

Physical Abilities
Immense Durability: As an Upper Rank demon, Akaza's body is exceedingly durable as he harbors an extremely high concentration of Muzan's blood. During his fight with Kyojuro, the Hashira had trouble cutting various parts of his body despite using a katana and possessing superhuman physical strength, showcasing Akaza's immense durability. Like all demons, Akaza's neck is much tougher compared to the rest of his body, so much so that Kyojuro only managed to cut two-thirds of his neck before the Upper Rank escaped, albeit Kyojuro was severely injured then.

Immense Speed & Reflexes: Akaza is extremely fast, as shown during his fight with Kyojuro when he moves at imperceptible speeds, moving so quickly that even Tanjiro and Inosuke couldn’t perceive his blisteringly fast movements, the latter even remarking that he was in "a different dimension". This is further exemplified from the fact that he could move in bursts of speed so fast that he appears to teleport, which he frequently displayed, managing to do so even for Tanjiro who can smell and discern future events. Akaza has shown to be more than capable of keeping up with the movements and reflexes of the Hashira, the most powerful and skilled combatants in the Demon Slayer Corps, and can even easily out-speed and overpower them. Even Giyu, one of the fastest Demon Slayers, was instantly matched by Akaza in speed despite him awakening the Demon Slayer Mark just moments before.

Immense Strength: Akaza possesses incredulous physical strength, which has been showcased multiple times, most notably when he punches or kicks, which is strong enough to break the ground and easily kill people. Every one of his strikes is strong enough to cause cuts, shatter ribs, smash eyes and later pierce the body of Kyojuro Rengoku, a Hashira who possesses above average durability. Akaza also easily broke Giyu's sword in half with a single side punch and completely shattered Tanjiro's Nichirin Sword with a flurry of punches. He was also shown to be capable of destroying the head and jaw of Upper Rank Two, Doma, despite the latter possessing higher levels of durability. Furthermore, Akaza could tear through the Infinity Castle with ease, even causing massive tremors in his wake. Combined with his Blood Demon Art, his strength is further increased, allowing him to cause craters in the ground by simply punching it.

When he was a human at the age of 11, he is able to completely knock several grown men unconscious in a fight with nothing but his bare fists and legs. At the age of 18, even before he became a demon, he is easily able to decapitate, dismember and mutilate 67 armed adult kendo masters with his bare fists, to the point that even Muzan thought that it is a demon who performed these feats.

Unlimited Stamina & Endurance: Like all demons, Akaza possesses infinite stamina and vitality, never tiring and always remaining in optimal physical and mental condition all the time as well as being able to endure waves of onslaught as if it were nothing. In his battle against Kyojuro, his arm was split open by Kyojuro's Rising Scorching Sun, yet he remained unfazed by the slash, even complimenting his blade. Akaza's immense resilience to pain and endurance is most evident when Kyojuro unleashed his most powerful form on him; this time, Akaza's arm and head were sliced open and his torso was slashed twice. Despite the intense attack, Akaza seemed more focused on marveling at Kyojuro's technique rather than the damage he sustained. Additionally, across all his battles he has never showed signs of pain or agony even after getting his limbs sliced off or when he was inflicted with numerous slash wounds and injuries, even those caused by Tanjiro's Hinokami Kagura which are known to cause pain even to Upper Rank demons, such as Daki. Furthermore, Akaza is one of the only ones to withstand Tanjiro's headbutt without any signs of pain afterwards, even complimenting it.

Prior to being transformed into a demon, Akaza demonstrated superhuman endurance at the age of 11 as he endured beatings that could make a grown man go numb (100 beatings) thus earning the title of "Demon Child". Akaza stated that he would endure those beatings even if lasts hundreds of years just for his father.

Supernatural Abilities
Extrasensory Perception: Akaza possesses supernaturally honed sensory abilities able to sense things outside the normal range of perception. On top of being able to sense the auras of demons and humans, Akaza can also sense something he calls "Fighting Spirit", the will of a person to fight as well as their murderous intent. He can use this to tell how strong or weak an individual is just by looking at them, predict where and how his opponents will attack, where their weaknesses are, along with sensing where they are within the environment, allowing him to react to attacks from his blind spots. As stated by Giyu, this ability also allowed him to instantly evolve and adapt to any attack or technique that he uses, to the point that he can predict when his opponents will strike and how to counter them with equal power. He was also able to find the location of both Giyu and Tanjiro from a relatively far distance. Akaza's senses are so strong that he is able to fight effectively and determine the location of his opponents in the surroundings without a head, making him deaf and blind, and even overpower Giyu in the process.

Overall Abilities
As the holder of the fourth highest title in the Twelve Kizuki, Hantengu was an extremely powerful demon. Through his Blood Demon Art, he is able to create four clones that were manifestations of his emotions, each of them possessing an Upper Rank demon's level of strength. They were able to hold off and overwhelm the combined efforts of Tanjiro, Nezuko and Genya, all of whom were powerful and seasoned Demon Slayers. Genya stated that Hantengu was particularly difficult to defeat as the Demon Slayers would have to play a cat-and-mouse game instead of a traditional confrontation, looking for the main body while being chased down by four Upper Rank-level demons.

As another testament to their strength, when the four clones fused into one body, Zohakuten, he was once again capable of fending off all three Demon Slayers as well as the Love Hashira, Mitsuri Kanroji, one of the strongest Demon Slayers in the Demon Slayer Corps singlehandedly. Even after the Love Hashira awakened her Demon Slayer Mark, she could only evade and dodge Zohakuten's attacks and stall until the Demon Slayers defeated the main body, Hantengu. As Zohakuten and Tanjiro stated, Mitsuri would've run out of stamina and died if not for the sun rising and Hantengu being killed.

Hantengu =

Demon Abilities
Size Alteration: Hantengu has the ability to change his size at will, as shown when he shrunk himself to a small enough size to fit into a wooden burl during most of Zohakuten's battle with the Demon Slayers, allowing him to stay hidden until the Demon Slayers began to actively seek him out.

Physical Abilities
Immense Durability: Hantengu possesses a body so durable that not even Genya's Nichirin steel shot could leave a dent on his body, the same bullets which tore of the necks of his clones with relative ease. Even when Genya tried to cut off Hantengu's body with his Nichirin Sword, his blade broke before it could do any damage. Even with the use of his bright red blade, Tanjiro was initially unable to make a dent in his neck.

Immense Speed & Reflexes: As an Upper Rank demon, Hantengu possesses incredible movement speed and reflexes, being able to evade both Muichiro's Mist Breathing technique and Tanjiro's Hinokami Kagura's technique with little effort. When he was in his smallest form, he could run fast enough that Tanjiro, Nezuko, or Genya, then enhanced with the flesh of an Upper Rank, could not keep up.

Supernatural Abilities
Enhanced Stealth: Hantengu possesses immense skill in stealth, which can be seen when he managed to easily infiltrate the Swordsmith Village, one of the Demon Slayer Corps' most vital and well fortified bases, without any of the numerous Demon Slayers stationed there noticing. Hantengu later managed to sneak into Muichiro's and Tanjiro's room without any of them detecting him, despite the former possessing a heightened ability to sense the presence of demons and the latter possessing an incredibly acute sense of smell that would've sensed a demon's presences from extremely long distances. His stealth also enabled him to trick both Muichiro and Tanjiro into a false sense of security, as it was not until he got close to attack them that they realized Hantengu was truly an Upper Rank.

Sekido =

Demon Abilities
Biological Absorption: Sekido displayed the ability to draw in and absorb the bodies of Karaku, Urogi, and Aizetsu, fusing to become Zohakuten.

 Flesh Manipulation: Like all demons, Sekido possesses the ability to control and alter his flesh to a certain extent. Sekido uses this ability to shape his flesh into a Khakkhara which he uses as a means to channel his Blood Demon Art. He is shown to be capable of creating more than one at a time.

Physical Abilities
Immense Speed & Reflexes: As an Upper Rank demon, Sekido possesses incredible speed and reflexes comparable to that of the Hashira. This was shown when he was fast enough to block the bullets from Genya's shotgun before they could reach him. He is also seen being able to absorb Karaku, Urogi, and Aizetsu in the mere blink of an eye to transform into Zohakuten, a feat only witnessed by the perception of the demon-enhanced Genya.

Karaku =

Demon Abilities
Flesh Manipulation: Like all demons, Karaku possesses the ability to control and alter his flesh to a certain extent. Karaku uses this ability to shape his flesh into a maple leaf-shaped Uchiwa. Similar to Sekido, Karaku can create more than one Uchiwa at a time, even creating an enlarged version of it to increase its area of effect.

Physical Abilities
Immense Strength: Karaku displayed incredible physical strength as he was able to nonchalantly overpower Nezuko, pierce her durable body with a single kick, and ripped her hand off with ease.

Unlimited Stamina & Endurance: Like all demons, Karaku possesses infinite stamina and endurance. When Genya shot off his head with his shotgun, leaving his head dangling on a piece of flesh and having his neck bones exposed, Karaku never showed any signs of pain but rather exclaimed in excitement over how he has never felt an attack like that and proclaimed that it was fun.

Aizetsu =

Demon Abilities
Flesh Manipulation: Like all demons, Aizetsu possesses the ability to control and alter his flesh to a certain extent. Aizetsu uses this ability to shape his flesh into a Jūmonji Yari.

Physical Abilities
Unlimited Stamina & Endurance: Like all demons, Aizetsu possesses infinite stamina and endurance. This was shown when he was able to engage in battle with Genya for an extended period of time without showing any signs of fatigue in the slightest. Aizetsu was also completely nonchalant when Genya destroyed his neck with a shotgun that fired Nichirin steel shot, even managing to attack without his head intact and heal his neck with ease.

Urogi =

Demon Abilities
Avian Physiology: Urogi's unique body allows him to gain the attributes and abilities of avian creatures, namely his large feathered wings and razor sharp talons. These large wings grant Urogi the ability to fly at incredibly high speeds while his talons are powerful enough to cut through diamond. He frequently fights in the same manner as how a bird of prey hunts, swooping down to a target to attack with his talons. A drawback to this ability is that his body has to be extremely light for him to fly, which gave an opportunity for Tanjiro to use Urogi's own flight against him.

Zohakuten =

Demon Abilities
Flesh Manipulation: Like all demons, Zohakuten possesses the ability to control and alter his flesh to a certain extent. He primarily uses this ability to form the drums attached to his back to form his Blood Demon Arts and the bone-like daggers to beat said drums to control it.

Supernatural Abilities
Menacing Aura: Zohakuten possesses an extremely menacing and overwhelming presence. Tanjiro choked on his breath and felt immense pain in his heart from Zohakuten's mere gaze. His aura is so strong that Genya could barely stand and caused him to start sweating profusely.

Urami =

Demon Abilities
Size Alteration: As Hantengu's last ditch attempt to escape from the Demon Slayers, Urami has the ability to greatly increase his size in order for Hantengu to hide in his heart.

Physical Abilities
Immense Durability: As Upper Rank Four's largest manifestation, Urami proved to be incredibly durable. He was able to shrug off the effects of Nezuko's fires with little trouble and has the notable feat of being able to endure the effects of direct sunlight for an extended amount of time, due to Hantengu still being alive and hidden inside him. Tanjiro noted that though his death in sunlight was inevitable, it would have taken enough time to cost the lives of the swordsmiths he is pursuing and forced him to take immediate action.

Immense Strength: Due to his large size and muscular physique, Urami is immensely strong and hard to take on in a physical fight. He uses this in an attempt to strangle Tanjiro, with a demon-enhanced Genya struggling to pry Urami's hands off. Urami proved so physically potent, Nezuko was forced to use her Blood Demon Art in order to simply weaken him to the point they could continue attacking.

Overall Abilities
Despite not displaying much in terms of fighting ability, as the holder of the fourth highest position in the Twelve Kizuki, Nakime is nonetheless an extremely powerful demon. She was capable of using her unorthodox Blood Demon Art to thwart the efforts of Obanai and Mitsuri at beheading her and stall the two Hashira for most of the Infinity Castle Arc, with neither of the two skilled combatants being able to so much as scratch her.

Talented Biwa Player: Nakime was an expert at playing the biwa, garnering attention from others when she performed while she was still a human.

Demon Abilities
Eye Detachment: Later, upon obtaining the rank of Upper Rank Four and presumably receiving more blood from Muzan, she displayed the new ability to create and detach several eyeballs from her body. This allowed her to spy on others from a long range. With this new ability, she was able to successfully find and locate the positions of nearly all members of the Demon Slayer Corps as well as the hidden mansion of Kagaya Ubuyashiki, who had gone to extreme lengths to hide its location from even the highest-ranking members of the Demon Slayer Corps.

Physical Abilities
Immense Speed & Reflexes: Nakime was shown to possess a level of speed comparable to the Hashira, namely of Obanai and Mitsuri, reacting to and successfully evading the former's Venom Fangs of the Narrow Head technique and the latter's attacks.