Gyutaro

Gyutaro is one of the primary antagonists in the Entertainment District Arc of Demon Slayer: Kimetsu no Yaiba. He is a demon affiliated with the Twelve Kizuki, holding the position of Upper Rank Six (の), a position he shares with his younger sister, Daki.

Over a century ago, Gyutaro was a human child who worked as a debt collector in the Rashomon Riverbank of Yoshiwara, the lowest class in the Entertainment District, before he and Daki were turned into demons personally by Doma, who was Upper Rank Six at the time.

Appearance
As a demon, Gyutaro is a relatively tall man of a somewhat muscular build with a black-dotted, pale grayish complexion whose anatomy was somewhat strange in that his upper torso, arms and legs were all extremely muscular where his waist was incredibly skinny, his pelvis jutting out at an unnatural angle. He possessed thin, green and red eyes, their sclera bright orange, that were slanted drastically downwards at the sides, the kanji for "Upper Rank" and "Six" carved across them. He has unruly black hair that cut sharply off to a brighter green around the crown of his head, worn messily styled with uneven bangs and several ahoges. His body and face has noticeable ink-like markings in the form of black spots on his body and a flowing water-like pattern on his face. Gyutaro has been described to look very ugly.

Gyutaro wore no shirt, only sporting a pair of baggy blue pants and seven pieces of pattern red cloth to decorate his body, one large one around his neck and three smaller ones around each arm.

As a human, Gyutaro had similar facial features as he did as a demon, notably the ink-like patterns on his face. He also possessed the same strange contorted anatomy and hair that he had when he turned into a demon. He was seen either wearing a dirty and torn kimono or a striped kimono that revealed his chest when he was older.

Personality
Due to the hard life he lived in near-constant poverty and the harsh tragedies he experienced as a human, Gyutaro portrayed himself to be cruel, petty and envious of anyone blessed with a better life than him, leading to him developing a habit of sarcastically complimenting a person's best traits and then trying to vindictively kill them afterwards, as he did to Tengen Uzui. Because of these hardships he faced as a human, Gyutaro eventually developed a personal belief that to take from those who have a better life than he had as a human is justified. A habit he seems to have is the penchant to inflict harm to himself when he is angry, frustrated or jealous as seen when he scratched himself hard enough to tear deep wounds into his own flesh when he grew jealous of Tengen.

Having lived over a hundred years and battled many Demon Slayers and Hashira, Gyutaro has become somewhat arrogant and prideful in combat, developing the habit of underestimating his opponents and looking down on them as beneath him, as he did with the team of Demon Slayers dispatched to kill him by having his sister fight and deal with them first rather than himself.

Despite his negative traits, Gyutaro does possess a genuine, strong love for his younger sister, Daki. Having raised her himself due to his mother's mental instability, this familial love was so strong that, despite becoming a demon and nearly forgetting his life as a human, he still retains a considerable attachment to her. Due to this, he has developed a tendency to occasionally spoil and allow her to do whatever she pleases, even if her actions go against his best interests. However, his love for her does not stop him from screaming and insulting her out of frustration. When he first exposed himself, he tenderly attended to his sister's cries and injuries, both praising her efforts while insulting her lack of intellgence.

Upon his death and his final thoughts, Gyutaro is shown to possess no regrets on the choices he made throughout his life—especially his choice of willingly becoming a demon and his subsequent actions of killing and eating hundreds of people for hundreds of years—showing how misanthropic and bitter he had become due to his terrible and harsh circumstances as a human. However, he later states that his only true regret he holds in his life is his sister, Ume, showing that deep down, Gyutaro regrets that his negative influence through how he raised her was the cause for her growth into a selfish person. During his final moments, Gyutaro wonders if she could have experienced many other wonderful things and lived many different lives without having to walk on the path of becoming a demon if he wasn't in her life. He genuinely wishes that she was born and raised by someone other than himself, completely shouldering the blame for all of her deplorable actions and showing just how much he loves her.

Later, even in death, Gyutaro is shown to have Daki's best interests at heart by telling her to go to the opposite direction where the light was better, showing that he wished Daki would have a fresh start to a new life without him being a bad influence on her.

Human Life
Gyutaro was born into poverty within the lowest class of the Entertainment District. His mother would often beat and try to kill him even before he was born due to presumed attempted miscarriage since she could not afford to feed him, but her efforts were proven to be in vain when she died of syphilis.

Throughout his childhood, he was berated for his appearance, voice, and poor hygiene from the other residents of the district. When his sister, Ume, was born he gained a sense of pride and acted as her "collector" within the district.

After Daki turned thirteen, he returned home from work one day, only to discover his sister tied up and burned to near death and left to die in a ditch because she blinded a samurai's eye out with a hairpin. He jumped into the ditch and began to panic, tearfully demanded that his sister be turned back to normal while cradling her body. As he embraces his dying sister, the same samurai whom she blinded appeared, snuck up behind Gyutaro and slashes his back in an attempt to kill him. He then overheard the samurai speaking to brothel manager who is revealed to be the one who asked to have Gyutaro killed. However, before the samurai is able to finish him off, he manages to jump out of the ditch and kill both the manager and the Samurai with his sickle.

Despite being injured, Gyutaro carried his sister Ume's dying body throughout the Hanamachi district in search of help, but was ultimately hit with the hard and cruel truth that there was simply no one who would give aid to them no matter where he went. He eventually succumbed to exhaustion, both he and Ume being on the verge of death. Before the end, they were then found by the then Upper Rank Six Doma, who was searching the Entertainment Districts to devour the young women of the area. He then offered to "help" them by turning them into demons, due to him being a "Nice Guy" and gave them a few drops of his blood to initiate their transformations. He then gleefully challenged them to become powerful enough to be chosen by "that man" and join the Twelve Kizuki themselves.

Demon Life
As a demon he and his sister, who was now known as "Daki", continued to reside in the Entertainment District and continued to terrorize and feast on its inhabitants, with the siblings seemingly developing a taste of only eating from the district's finest and most beautiful geisha and oiran of the district. After an unknown number of years, the siblings were eventually noticed and acknowledged by "that man" and given the rank of Upper Rank 6 of the Twelve Kizuki that they then shared between themselves.

Somewhere along his long life as a demon, Gyutaro successfully killed and ate at least fifteen Hashira of the Demon Slayer Corps while his sister killed and ate seven.

Entertainment District Arc
After a tantrum-throwing Daki called out for him, Gyutaro emerged from her body, quickly taking her to another part of the room. He reattached her severed head, comforting her while doing so. Tengen attacked the pair, but Gyutaro quickly countered it, injuring the Hashira. He then complimented the Demon Slayer on stopping his attack.

The mysterious demon further complimented Tengen's face, skin, flesh, and height, as well as his presumed popularity with women. Feeling envious of the Hashira, Gyutaro threatened him with a painful death. Hearing Daki's complaints about Nezuko Kamado's involvement, he promised to exact vengeance upon all those who had hurt her. Throwing his sickle-like weapons with great force, which returned to him shortly afterwards, Gyutaro was unable to injure Tengen or the bystanders he was protecting. He restated his envy of the Hashira, which only increased when the Demon Slayer revealed he had three wives. The mysterious demon unleashed his Blood Demon Art: Flying Blood Sickles, a barrage of blood blades. His attack accomplished nothing, as Tengen escaped through a hole he made in the floor, which surprised the emaciated demon. Gyutaro commanded his attack to turn, revealing its auto-tracking nature. Tengen deflected the attack again, throwing and then detonating several small bombs in Gyutaro's vicinity. Wrapped in his sister's sash, Gyutaro withstood the blast, smugly stating they are one.

The emaciated demon informed his opponent he was different from the previous Hashira he had fought, once again expressing his envy at Tengen's talents. He remained silent as the Sound Hashira rejected his claims, who cited Gyomei Himejima and Muichiro Tokito as examples of amazing talent, but countered by demanding to know how his Flying Blood Sickle's poison hadn't killed the Demon Slayer yet. Moments later, Gyutaro grinned, declaring Tengen's statement of poison resistance to be a bluff, and blocked the Hashira's twins blades with his dual sickles. Clashing briefly with his opponent, Gyutaro was furious at Tengen kicking his sister. He was then surprised as Tengen threw more bombs at him and his sister, which he managed to escape unscathed. He quickly deduced the true nature of the bombs, special gunpowder capable of hurting demons, leaving him confident in their eventual victory, but was surprised as Tengen's subsequent sword strike extended. Marveling at the Hashira's grip strength, Gyutaro deflected the attack, but was left with a slight wound to his neck. He warned Tengen of his impending death, only to be surprised by the arrival of Inosuke Hashibira and Zenitsu Agatsuma.

The mysterious demon reiterated his death threat, believing the arrival of the Hashira's subordinates to be insufficient. Tengen remained confident in their victory, having deduced that cutting off both of the siblings' heads off at the same time was the key to success, but Gyutaro assured him it wouldn't be easy to accomplish. He also mentioned how he and his sister had eaten numerous Hashira, fifteen and seven, respectively. He then watched silently as Daki was taken onto the roof by Zenitsu, with Inosuke going to assist the towheaded youth in his fight, but remained confident that she would prevail. Utilizing his connection with his sibling, Gyutaro closed one of his eyes, and quickly attacked Tanjiro Kamado. He nearly struck a blow to the youth's neck, but was thwarted by Tengen at the last second causing him to only stab him in the chin mere inches away from the fatal strike, and proceeded to exchange a flurry of blows with his opponent. In the middle of this clash, sashes from his sister's conflict above them descended, prompting Gyutaro to call Tengen's claim of success to be a lie, as well as labeling his adversaries as incompetent for lack of movement control.

The Demon Slayers can be seen engaging in battle with the two demons of the Entertainment District, fighting ferociously on the rooftop and inside one of the brothels. As the building begins to collapse, Tengen finds himself getting cornered between two of Gyutaro's attacks however Tanjiro jumps in and manages to protect him from the slashes. Tengen proceeds to use Sound Breathing, Fifth Form: String Performance to try to corner Gyutaro, but Daki's obi interferes and protects her brother from the attacks.

Tengen begins to be pushed back by the obi, however Tanjiro moves in to cut the obi and tries to distract Gyutaro. Meanwhile on the rooftop, Inosuke and Zenitsu can be seen struggling as they try to evade the attacks from Daki's obi. The boys realize that Daki is know attacking them with the blood blades used by Gyutaro, making it impossible for them to approach her. Now that the brothel has been destroyed, Tengen and Tanjiro are left to fight Gyutaro and the obi beneath the night sky. On a nearby rooftop, Hinatsuru appears carrying a large box filled with kunai darts and proceeds to launch dozens of them down below onto Gyutaro. At first he is left confused behind the random attack, but then Gyutaro utilizes his Blood Demon Art: Rampant Arc Rampage to deflect them away from him. Gyutaro is left shocked when Tengen proceeds to attack him despite getting pierced with the darts. He attempts to decapitate him with his sickle, however Tengen manages to evade his attack and successfully cut off his legs. At that moment, Gyutaro is struck on the neck by one of the kunai darts and fails to regenerate his feet, realizing that the darts were coated with Wisteria extract. As his body begins to go numb, Tanjiro closes in on him to try to decapitate Gyutaro, leaving him seething with curiosity as the Demon Slayers quickly gain the upper hand.

However at that moment, Gyutaro manages to regenerate his legs and proceeds to attack them at a close vicinity. He uses his Blood Demon Art, Rotating Circular Slashes: Flying Blood Sickles to emit numerous blood slashes to attack them. Before they can reach him, Tengen Uzui grabs hold of Tanjiro and throws him back to protect him from the attack. Within seconds, Tengen uses Sound Breathing, Fourth Form: Constant Resounding Slashes to deflect Gyutaro's attack but finds that he has disappeared from sight. To his horror he looks up to roof to see that Gyutaro has managed to capture Hinatsuru and is about to kill her.

Tengen tries to save her however Daki's obi blocks him from reaching her. Tengen yells at Gyutaro to stop as he tries to push through. Tanjiro comes close to the building and tries to use the Hinokami Kagura to reach her however his body refuses to listen to him. Tanjiro quickly changes tactics and uses a form of the Water Breathing to quickly save Hinatsuru from Gyutaro. Realizing that he managed to save Hinatsuru, Tanjiro decides to utilize both the Water Breathing as well as the Hinokami Kagura in order to increase his attacking power. Gyutaro is left surprised by Tanjiro's unexpected maneuver and charges at him. However at that moment, Tengen comes behind Gyutaro and swings his blade at Gyutaro's neck while openly yelling that he owes Tanjiro. Tanjiro assists Tengen by also trying to swing his blade down onto Gyutaro's neck, however the demon manages to use his sickles to halt both of their attacks and attempts to absorb their blades. Tengen uses his free arm to use his second blade to pierce the Gyutaro, but his quick reflexes allow him to catch the tip of the blade in his mouth. Sensing that Gyutaro is about to unleash more blood blades, Tengen tells Tanjiro to hang in there as Hinatsuru yanks Tanjiro away from them, allowing Tengen to leap off of the roof while pulling the demon with him.

As Inosuke runs away with Daki's decapitated head, Gyutaro suddenly appears behind him and impales him through the chest. Tanjiro looks on in horror as Gyutaro grabs Daki's head while Inosuke collapses on the roof, he then looks down on the ground and is once again horrified to see Tengen laying bleeding and unresponsive on the ground. Zenitsu tries to warn Tanjiro of the oncoming obi attack, but before he can escape, the roof collapses from beneath him and Tanjiro falls to the ground seemingly buried beneath the rubble.

Tanjiro awakens from his dream and tries to recollect his thoughts but before he gets up, Gyutaro can be seen standing over him, questioning if he's still alive. Gyutaro takes it upon himself to tell Tanjiro that Inosuke was pierced through the heart, Zenitsu was suffering and trapped beneath the rubble, and Tengen's heart had stopped due to the poison. He proceeds to refer to all of them as pathetic and asks Tanjiro how the demon in the box is related to him, and he responds by saying she's his younger sister. Gyutaro begins to laugh at Tanjiro's pathetic attempt to protect his sister and tells him he should be using his hands, before proceeding to break his fingers.

As Tanjiro withers on the ground in pain, Gyutaro proceeds to berate him for his weakness and pulls him by the hair. He teases Tanjiro and tells him to try to decapitate him, but instead of attacking him, he slaps his hand on a small bag and hangs his head down in defeat. Believing that he broke Tanjiro's fighting spirit, he reveals his grand idea of offering Tanjiro the opportunity to become a demon for the sake of his sister. Tanjiro suddenly looks up into the sky and Gyutaro asks him if he's trying to hold back his tears but to his surprise, Tanjiro responds that he had been preparing for the moment.

With his face gets close to Gyutaro's, Tanjiro brings his head down and headbutts him with a great force momentarily stunning him. Daki screams at him to get up but as his legs falter, and looks down to discover that a kunai dart has been lodged into his leg. He realizes that when Tanjiro had looked down, he opened a bag given to him by Hinatsuru which contained Wisteria Poison. Tanjiro manages to stand up while Gyutaro remains paralyzed and crouched before him, and uses his remaining strength to swing the blade down onto his neck.

Having regained his footing and subdued Gyutaro, Tanjiro manages to draw his blade onto Gyutaro's neck and press down to try to decapitate him. As he try to forces the blade down, Tanjiro envisions himself in Gyutaro's place and thinks that if he were in his situation, he would want his comrades to kill him before he could live as a demon. Tanjiro continues to struggle to try to cut through Gyutaro's neck but before he can do so, Gyutaro manages to emit his blood blades to repel his sword. Tanjiro is knocked off balance as Gyutaro regains his footing, causing them to reengage in battle. Gyutaro gains the upper hand and brings his sickle down onto Tanjiro's neck, however at that moment Tengen, regains his consciousness and protects him from the sickle.

Despite being severely poisoned and missing his left hand, Tengen engages in head to head combat with Gyutaro while remarking that he's perfected the Musical Score Technique. It is revealed that his technique allows him to analyze maneuvers of his opponents and read them like notes on a piece of sheet music. However the poison has hindered his attacking ability meaning that he can only defend Gyutaro's attacks.

Gyutaro manages to land a powerful attack to the left side of Tengen's face resulting in the loss of his left eye, and proceeds to stab Tengen. Tanjiro yells out to Tengen after witnessing him get stabbed, but Tengen orders him to ignore him and jump. Tanjiro leaps into the air towards Gyutaro and attempts to decapitate him, but is seemingly stabbed through the jaw by Gyutaro's sickle. The demon begins to panic as they gain the upper hand and pulsate his poison to try to kill Tanjiro, however he proceeds to endure the pain, and swings his blade towards Gyutaro.

It is revealed that the demon siblings were able to keep the Demon Slayers at bay through a hidden ability. During the battle, Gyutaro was controlling his sister and was able to see through her point of view, giving them the advantage. His poison also affected the Demon Slayers greatly, but there was always a member of the team that would slip through, allowing them to continue the fight. Tanjiro can be seen swinging his blade down onto Gyutaro's neck, despite the demon's sickle piercing through his jaw. His arm strength isn't enough to slice through his neck so he resorts to forcing his entire body to push through, ignoring the pain. Gyutaro notices the change in Tanjiro's scar as he develops a Demon Slayer Mark and his eyes roll back in his head. The change in his demeanor proves to be too great as Tanjiro's blade cuts through Gyutaro's neck, causing him to panic.

Meanwhile, Daki can be seen resisting Zenitsu's attempt to decapitate her. She attempts to use her obi to kill Zenitsu at close range, but Inosuke unexpectedly rushes up revealing that he protected his heart from being stabbed by rearranging his organs. He also reveals that poison has no effect on him since he was raised on the mountains, before proceeding to assist Zenitsu in decapitating Daki. The three boys let out a roar as they muster out the strength to slice through the Demons necks. After the long battle, Zenitsu and Inosuke manage to decapitate Daki up on the rooftop while Tanjiro can be seen decapitating Gyutaro simultaneously on the ground. Their heads fall onto the ground and roll around until they end up face to face.

As Gyutaro's body falls onto the ground, Tengen notices something being emitted from it and becomes alarmed. Meanwhile up on a nearby rooftop, Suma, Hinatsuru, and Makio have arrived to witness the end of the battle. As Makio begins to bicker with Suma over her behavior, Hinatsuru notices something is amiss down on the battlefield. She looks down to see Tanjiro struggling to breathe as he bleeds out from his jaw, while trying to slow down the poison. Tanjiro looks over at Tengen who's sitting down in front of him and yelling at him with a panicked expression. However, Tanjiro fails to comprehend his sudden alarm as Tengen looks at him with horror.

After the battle is over, Nezuko and Tanjiro search for the heads of the Upper Rank siblings. Tanjiro smells the scent of the demons and guides Nezuko to head towards them. When they arrive, Gyutaro and Daki can be seen viciously arguing over their defeat. Their heads begin to disintegrate as they blame each other for losing the battle, with Gyutaro degrading Daki for being useless. Daki retaliates by saying that someone as ugly as Gyutaro cannot be considered her relative, which leaves Tanjiro looking at them concerned about the hurtful words they are spewing at each other.

Daki and Gyutaro continue arguing as their heads begin to disintegrate, she starts chastising her brother for being useless and questions if they're even related. Gyutaro grows angry at her comments and calls her a weakling, even regretting protecting her in the first place. He loses his temper and goes on to spew hateful remarks such as mentioning that his life would've been better without her and wishing that she had never been born, causing Daki's eyes to well up with tears. Tanjiro intervenes and covers Gyutaro's mouth, stating that he doesn't mean what he's saying and that they shouldn't spend their final moments fighting with each other. Daki begins to wail at Tanjiro out of frustration, yelling at him to leave them alone and stop lecturing them. Daki's head reaches its last phases of disintegration and she cries out for her brother to save her, saying that she doesn't want to die. Gyutaro hopelessly watches as her head dissolves away while still calling out him, before he impulsively calls out to her by her birth name, Ume.

As he reaches his final moments, Gyutaro recalls his past as a human born in the Kirimise to a prostitute mother. Before she died from syphilis, his mother tried to kill him many times, even after his younger sister was born. Due to his appearance and lack of hygiene, the young Gyutaro was bullied and detested by everyone he met. Things began to change after his sister was born, as her beauty dismissed his inferiority complex, and he used his ugliness, plus his newfound fighting skills, to become an efficient debt collector. However, the good fortune would not last for the siblings. When Gyutaro turned 13, his sister blinded a samurai with a comb, and was subsequently burned alive for her crime. Having been away on his job at the time, Gyutaro returned to find her barely alive, and hugged her as she clinged to life. He cursed the gods to return his sister and for treating them cruelly, before he is attacked by the same samurai. The samurai slashes Gyutaro from behind, allowing him to bleed out at he chats with one of the brothel managers.

The manager brazingly calls Gyutaro a nuisance and a brute for harassing the locals of the district, before expressing her pity at having lost Ume as a courtesan. Before the samurai could finish him off, Gyutaro viciously kills the manager, and berates the samurai for having a lavish lifestyle before gruesomely killing him as well. As Gyutaro tried to find help for him and his sister, no one would help them due to their reputation and circumstances. He trudges on through the street until he ultimately collapses and bleeds out on the floor, as snow begins to fall. The siblings lay on the floor dying, until they are discovered by one of the Upper Ranks, who offers to turn them into demons. Gyutaro adamantly proclaims that he would become a Demon again, no matter how many times he is reborn, wanting to always bring fear as "Gyutaro the Debt Collector".

Gyutaro muses how Daki could have been if he had raised her differently, before taking note of his surroundings. A younger looking Daki appeared behind him, disgusted with their current location and wondering where the exit was. The emaciated man ordered her not to follow him anymore, getting angry when she wouldn't comply. A tearful Daki apologized for her earlier cruel insults, stating that it was because she had not wanted to accept that it was her fault that they had lost. When Gyutaro still refused to let her come with him, Daki tackled him from behind, stubbornly refusing to ever let go, vowing to always be his little sister no matter how often they are reborn, and reminding him of the promise they had made long ago to always stay together. Finally accepting her company, Gyutaro carries his sister into the fire that awaits them.

Abilities
Overall Abilities: As the true Upper Rank Six, Gyutaro is an extremely powerful demon with over a century worth of combat experience under his belt, having killed 15 Hashira in the past, the strongest and most skilled Demon Slayers in the Demon Slayer Corps. His immense skills and abilities were evident as he possessed the means to easily combat both Tengen Uzui, the Sound Hashira of the Demon Slayer Corps, and Tanjiro Kamado, a talented Demon Slayer who has fought Lower Rank demons in the past, eventually overwhelming them in battle. Even when the battle turned in the favor of the Demon Slayers, Gyutaro and Daki quickly managed to take control of the situation and overwhelm them.

Another testament to his power is the fact that despite being killed in battle, Gyutaro was still capable of severely injuring and maiming Tengen, Tanjiro and Inosuke and would have likely killed them if not for Nezuko's own unique Blood Demon Art and if not for his own arrogance getting the better of him, he would have likely won and killed them all himself, as Muzan Kibutsuji later stated. Even as a child with no combat training, Gyutaro managed to defeat an adult swordsman by himself.

Core Detachment: Gyutaro possess the ability to completely detach his "core" from his own body, with it seemingly taking the form of his right eye that he then implants into his sister Daki's forehead, that then enhances and strengthens all of his sister's abilities and powers. Through this, Gyutaro also then develops a psychic connection with her and allow him to see, hear and sense everything she does and even possess and take control of her body in order to better coordinate their attacks.
 * Decapitation Immunity: Additionally, through detaching his "core" from his body, Gyutaro is immune to decapitation by Nichirin Swords. This effectively ensures that both he and his sister cannot be killed unless both of their heads are cut off simultaneously.
 * Extrasensory Perception: Through his psychic connection with Daki, Gyutaro can sense everything around her as well, allowing them to coordinate their attacks. This was shown when Gyutaro act on the information given to him on pure instinct and maneuver both his and her attacks and actions perfectly while in battle, as seen during their battle against Tengen, Tanjiro, Inosuke and Zenitsu, where he perfectly coordinated his attacks with Daki's to both launch several simultaneous assaults on all four opponents despite the both of them fighting in separate locations and facing two entirely different pairs of opponents by manipulating his sister's actions and controlling her sashes to strike in tandem with his blood slashes to create powerful surprise attack combos.
 * Shared Biology: Gyutaro and Daki possess a rather abnormal trait not seen in most demons. Despite the fact the siblings are two different people, the two have essentially a single body. This can be seen with how Gyutaro normally remains concealed within Daki without altering her physical mass in the slightest. Even though Gyutaro is inactive for the majority of the time, he is still more powerful than his sister who is an active predator. This implies that humans consumed by Daki also serve as nutrition for Gyutaro, allowing the two to grow stronger at the same time. Gyutaro also has control over his sister, being capable of not only reattaching her head for her, but also healing her burnt tissue for her when she was under emotional distress.

Flesh Manipulation: Like all demons, Gyutaro possesses the ability to manipulate his own flesh to a certain extent. He mainly uses this ability to shape his flesh into an extremely sharp Kama which he can control telekinetically. This was also evident as Gyutaro could merge his body with Daki's and later managed to encroach and infect the swords of Tengen and Tanjiro with his flesh Kama in order to prevent them from pulling out their blades effectively keep them in place. He also displayed the ability to twist his neck backwards.

Immense Durability: Gyutaro possesses an incredibly durable body. This was shown when Tengen and Tanjiro both used their Nichirin Swords to attack Gyutaro's Kama made from his own flesh but to no avail as they couldn't even slice through it. When Tanjiro landed a surprise attack on Gyutaro's neck, his blade failed to make a dent in the Upper Rank's body. Tanjiro only managed to lob off Gyutaro's head when he "summoned a hundred times" the strength in his body,which awakened his Demon Slayer Mark in the process, to successfully cut through his neck.

Immense Regeneration: As a member of the Upper Ranks, Gyutaro's regenerative powers are extremely potent. With his immense recovery speed, he could instantly heal the scratches he inflicted upon himself in a matter of seconds. More impressively, he could regenerate from the damages dealt to him by Tengen's explosive beads that possess enough explosive force to harm the bodies of Upper Rank demons. Even when he was hit with kunai that was coated with wisteria extract that could paralyze an ordinary demon for half a day and seal the movements of Lower Rank demons, Gyutaro still managed to regenerate instantly.

Immense Speed & Reflexes: As an Upper Rank demon, Gyutaro has assimilated an extremely high concentration of Muzan Kibutsuji's blood which have greatly enhanced his own speed and reflexes to levels that can out-match the Hashira. As seen with most demons, Gyutaro can also use bursts of speed so fast he appears to teleport. He could also keep up with the blistering movements Tengen, the Hashira with the fastest running speed out of all his peers, sometimes moving fast enough to evade his reflexes and land hits on him before he can even react. Gyutaro was also fast enough to block a barrage of fast kunai.

Immense Strength: Gyutaro possesses superhuman physical strength, being able to clash with Tengen's own immense arm strength while fighting. He was also able to break two of Tanjiro's fingers without much effort, send him flying into a building at high speeds, and cause Tanjiro to cough up blood with a single kick to the stomach. Gyutaro was also able to send Tengen flying back a great distance with another kick.

Poison Generation: Gyutaro possesses the ability to generate extremely lethal poison, which he uses to coat his blood sickles. The poison is strong enough that it would almost instantly kill someone inflicted with it, and those who don't will be severely weakened and might be rendered unable to fight. Even Tengen who has developed a high tolerance to poison from his shinobi training is greatly weakened by Gyutaro's poison to the point he had to forcefully stop his heart to prevent it from spreading even further. The poison had much worse effects on Tanjiro and Inosuke, despite the latter having some form of natural poison resistance. Tanjiro was almost immediately incapacitated when he was inflicted by Gyutaro's poison while Inosuke was left in a near-death state after a while.

Tactical Intellect: Gyutaro displays incredible tactical foresight and intelligence. He is able to use the information he gathered from Daki to coordinate their attacks against his opponents. Gyutaro was also able to use his Blood Demon Art tactically to create inescapable attacks. After seeing Hinatsuru fire a barrage of kunai, Gyutaro correctly surmised that mounting an attack that would normally be easily mitigated by his regeneration had an underlying motive and chose to deflect the attack rather than taking it head on. He is also shown to use his flesh manipulation ability in creative ways, such as trapping Tengen's and Tanjiro's blade in his flesh Kama to keep them from moving. Lastly, Gyutaro figured out Tanjiro's strategy which was to disguise the scent of the wisteria-laced kunai with a prostitute's incense bag in order to land a surprise attack on him.

Unlimited Stamina & Endurance: Like all demons, Gyutaro possesses an infinite amount of stamina and endurance. He was able to engage in combat with Tengen, a Hashira, and Tanjiro for the entire duration of the battle without showing any signs of fatigue or exertion. Gyutaro also showed immense resilience to pain when he twisted his own neck backwards to block Tengen's sword attack and had both his legs sliced off, not displaying any signs of pain in neither instances. Even before becoming a demon, Gyutaro was able to get slashed in the back by a katana and didn't flinch nor show any signs of pain.

Blood Demon Art
Blood Manipulation: Gyutaro's Blood Demon Art allows him to manipulate his own body's blood in various ways. He is shown to generate them from his flesh Kama or from open wounds on his body or release blood at will from his veins. It is implied that Gyutaro doesn't run out of blood due to his regenerative abilities, giving him a virtually infinite source of blood to fuel his techniques. In combat, he usually creates barrages of solidified sickle-shaped blood as sharp as blades that can travel at immensely fast speeds to attack his opponents. Gyutaro is capable of freely manipulating these blood slashes at will, altering their movements until they hit his opponent or shaping them however he pleases. Furthermore, his blood sickles are coated in deadly poison.

Gyutaro can use his Blood Demon Art tactically to create inescapable attacks that can overwhelm the likes of Tengen and hold off the combined efforts of Tanjiro, Zenitsu, and Inosuke. Moreover, Gyutaro's blood slashes appear to be extremely deadly as Inosuke noted that a single scratch from them would be enough to kill him. The blood he manipulates is shown to be quite durable as well since Tanjiro deduced that his sword would shatter if he took the technique head on without deflecting it. Furthermore, Gyutaro can create a shield of blood in the form of a dome, which he used to protect himself from a barrage of kunai, further exemplifying its immense durability. More impressively, Gyutaro can create long-ranged circular torrents of razor sharp blood that can decimate the surroundings with ease.

Fighting Style
Kama Proficiency: Gyutaro has displayed mastery in dual wielding his flesh Kama in combat. As an Upper Rank demon, he has lived for over a century and has refined his skill to the point he can surpass the Hashira, the strongest swordsmen in the Demon Slayer Corps, in close ranged combat. Even before he became a demon, Gyutaro has shown to be apt in utilizing his Kama for violence, easily killing a woman and later slicing an adult swordsman's head in two with them when he was enraged. With his demon abilities, he can even control and move his flesh Kama telekinetically, which Gyutaro used to make them fly back to him like a boomerang. As noted by Tengen and Inosuke, Gyutaro's fighting style is comparable to that of a mantis. Gyutaro's combat style seems to revolve around aiming to piercing his opponent's neck with the tip of his Kama.

Techniques

 * -|Description =
 * Flying Blood Sickles (び) - Gyutaro releases multiple sharp and durable sickle-shaped blades of solidified blood by swinging his Kama.


 * Rampant Arc Rampage - Gyutaro creates a dome of sickle-shaped blades of solidified blood around him that defend from incoming attacks.


 * Rotating Circular Slashes: Flying Blood Sickles (・び) - Gyutaro unleashes circular waves of sharp solidified blood from his body. This technique has massive range and he is even able to activate it as his head is being cut off.


 * -|Demonstrations =

Equipment
Flesh Kama: Gyutaro carries around a pair of Kama fashioned from his own flesh and blood. They serve as his main tools in combat and are extremely durable and sharp, being able to tear through flesh and block attacks from Nichirin Swords with ease. They have a fleshy exterior and are blood red in color. Gyutaro briefly displayed the ability to move his Kama telekinetically, making it fly back towards him as if it were a boomerang. When he was a child, Gyutaro possessed a similar pair of Kama which someone left behind and was most likely his main source of inspiration for using a pair of Kama as a demon.

Trivia

 * Muzan Kibutsuji has stated in Chapter 98 that Gyutaro was the True Holder of the Position of Upper Rank Six, not his sister Daki.
 * Gyutaro was one of Muzan's favorite Upper Rank, since he highly values his circumstance and greedy personality.
 * The word 'Gyu' refers to the barkers who would entice customers to enter the entertainment district. After working as a Gyu, he took the word and used it to name himself as Gyutaro, with 'Taro' being a common ending for male names.

Quotes

 * (To Tanjiro Kamado, Zenitsu Agatsuma, Inosuke Hashibira and Tengen Uzui) "The sufferings of my past were lessons on what to do to others as revenge! If I don't cause misery equal to my own unhappiness, I'll never balance the scales! That's how it is when you're a demon! And we kill anyone who tries to tell us otherwise."
 * (To himself) "It turns out I was good at fighting. So I worked as a debt collector. People found me creepy. They feared me. I liked that feeling. I became proud of my ugliness. And with such a beautiful sister, I began to lose my sense of inferiority. It felt like our lives were finally going in a good direction."

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Gyutaro Гютаро Gyutaro 妓夫太郎 妓夫太郎