Kokushibo (Kokushibo x Muzan)

Muzan Kibutsuji Muzan (Who? Yo舞Yo辻Ya 無ElPeroPero, Kibutsuji Muzan?) is the main antagonist of Demon Slayer: Kimetsu no Yaiba. He is the Demon King, the progenitor of all other demons in existence, and the leader of the Twelve Kizuki, an organization consisting of the twelve strongest demons under his direct command. [5] A millennium ago, during the Heian Era, Muzan was turned into a demon from an experimental treatment for his terminal illness[1] and his goal ever since has been to live without fear of death and become truly eternal.[6] He plans to accomplish this in two ways: by finding the Blue Spider Lily or by creating more demons in the hopes that one day, one of them can eventually conquer his weakness to sunlight.[7][8] It is later revealed that Muzan is also of the same bloodline as the Ubuyashiki family. [9] Muzan is a tall, thin, muscular build man with an abnormally pale complexion that can easily be mistaken for a sickly and unhealthy person. He has curly black hair and piercing, almond-shaped eyes. His irises have a cat-like appearance and are a plum-red color. He also possesses sharp, blue nails on his hands. Physically, he appears to be in his twenties. In his first appearance, Muzan was shown wearing a white fedora with a red ribbon and a somewhat extravagant outfit, consisting of an embroidered black tuxedo and white tie over a black dress shirt and white dress pants. He also wore black loafers. As seen in Rui's memories of his encounter with Muzan, the Demon King once sported a slightly different hairstyle and outfit in the past. When he first met Rui, Muzan's hair was straighter and parted down the middle. He also wore a baggy tuxedo and a white half-cape over it. During his encounter with the lower ranks, he arrived in the appearance of a beautiful lady, changing shape and body.

Kokushibo Kanji Demon Humanoid Monster(Human) Romaji Kokushibo Alias Michikatsu Tsugikuni (Human name) Secretary Kokushibo (Kimetsu Academy) Characteristics Career Devil human (formerly) Gender Male Age 17-24 (Human) > 480 (Chronologically) Height 190 cm (6'3") [1] Weight 93 kg (205 lbs) [1] Hair color Black with red tips Eye color Dark Purple (Human) Golden with Red Sclera (Demon) Kokushibo (黒死家, Kokushibō?) is a major secondary antagonist of Demon Slayer: Kimetsu no Yaiba. He is a demon affiliated with the Twelve Kizuki, holding the highest position, Upper Rank One (MePleaseYoYoYo壱壱, Jogen no Ichi?). [2] Nearly five centuries ago, during the Sengoku Era, Kokushibo was a human named Michikatsu Tsugikuni (継YaYoSí 巌Sí勝Sí, Tsugikuni Michikatsu?), [3] a former Demon Slayer, [4] and the older twin brother of Yoriichi Tsugikuni, [5] the strongest Demon Slayer to have ever existed. Kokushibo is also the ancestor of Muichiro Tokito and Yuichiro Tokito[6] and the one responsible for turning Zenitsu Agatsuma's eldest, Kaigaku, into a demon and joining the Twelve Kizuki.[7]

It is revealed that as a human, Kokushibo harbored an immense sense of envy towards his younger twin brother for his natural talent and incredible abilities. These feelings of jealousy and contempt only grew stronger as he watched his brother grow into an unrivaled warrior of unmatched caliber even amongst the Demon Slayer Corps, with none of the Hashira coming close to matching his level of strength. This envy reaches its peak when he discovers that Yoriichi is still alive and elderly, despite the curse of the Demon Slayer Marks that supposedly killed him before he turned 25.

Kokushibo is a tall, muscularly built man with a pale complexion. He possesses long, spiky black hair with red tips which he keeps in a ponytail. His most notable feature are the three pairs of eyes on his face with yellow irises and red-colored sclera that have straight black lines diverging from each iris. His middle pair of eyes have the kanji for "Upper Rank (To MePleaseYoYo, Jōgen?)" and daiji for "One (壱Yes, Ichi?)" engraved on them, while his other pairs of eyes feature black pupils and a cracked pattern on the irises. His top pair of eyes replaced his eyebrows. Kokushibo also has red markings resembling flames on the upper left side of his forehead and on the lower right side of his chin. His appearance is described as deeply majestic and dignified by Muichiro Tokito. [8] Kokushibo wears a purple and black hexagonal-patterned nagagi kimono and black umanori-style hakama pants tied with a white uwa-obi. He carries a fleshy katana at his waist that has eyes in the space between the tsuka ito wrap of his sword handle. The tsuba and blade are shown to have eyes and veins. The scabbard also has a fleshy appearance. As a human, Kokushibo's appearance was almost identical to his demon form, save for the number of eyes, his prominent eyebrows, and his less fair skin. His eyes had dark purple irises and normal white sclera like a human. As a child, he was typically seen wearing a white kimono, as opposed to the purple and black patterned one he is seen wearing as an adult. After being decapitated by Sanemi Shinazugawa and Gyomei Himejima, Kokushibo evolves into a more grotesque and monstrous form, with protruding fangs and jaws, large, uneven white horns on the front and back of his head, pointed fingernails, red outgrowths on his face, his pupils staring in different directions, and shorter, messy hair.

Kokushibo is reserved, silent, and aloof, maintaining an aura of unnerving calmness and mystery that complements his position as Upper Rank One. He rarely speaks; when he does, he speaks in a slow, emphatic manner that lends more gravitas and authority to his words. He is a firm and punctual rule follower, and shows great respect for the hierarchy of the Twelve Kizuki, as seen in the Upper Rank meeting. [9] Kokushibo is also shown to be humble, and did not hesitate to admit failure or complain about any hardships. Kokushibo demonstrates unwavering loyalty to Muzan Kibutsuji, as he carries out his actions solely to fulfill Muzan's goals. Despite his outward display of reserve, dignity, and humility, there is a cold and unforgiving side to his personality. When reprimanding people, his words can be harsh, bordering on cruelty. His threats are severe, demanding absolute obedience. Kokushibo is shown to be genuinely delighted when the opponents he faces challenge him, such as helping to dress Muichiro Tokito's severed hand for his talented swordsmanship, praising Gyomei Himejima for his unparalleled human skills, and forgiving Akaza because he enjoyed the challenge of fighting him. However, because of this, he also felt irritation after realizing that Akaza had died, and pities Gyomei for his impending death upon unlocking his Demon Slayer Marks.

Yoriichi Immeasurable Speed ​​and Reflexes: Yoriichi possessed unparalleled levels of speed that surpassed all other characters in the series, including that of the Demon King, shown when he was able to dodge every attack Muzan threw at him and nearly fatally injure Muzan with one move, despite the Demon King's own immeasurable speed and strength. [24] Even when Muzan was split into 1,800 pieces of flesh in order to escape, Yoriichi managed to reduce the number to 300 in mere moments. [25] Even on the last day of his life, he was able to easily attack Kokushibo, Muzan's strongest subordinate, nearly slicing his neck instantly, despite Yoriichi telling him when he would attack. [26] As another testament to his godly movement speed, Yoriichi Type Zero, the robot doll modeled after him used by Demon Slayers for training, was built with six arms because two arms alone could not replicate Yoriichi's movements. [27]

Immeasurable Stamina and Endurance: Even as a seven-year-old child, Yoriichi could run for an entire day without resting; he even commented that he did not feel the least bit weakened. [28] His vitality is also beyond the peak human level, being able to survive without food or water for ten whole days when he was hugging his dead wife. [29] Furthermore, Yoriichi lived into his 80s without his power diminishing in the slightest, as shown when he instantly overpowered Kokushibo during their final showdown. [12] Immeasurable Strength: Yoriichi possesses tremendous levels of physical strength possibly beyond that of almost all other Demon Slayers in existence. As a child, he could knock out a grown man with physical prowess with a wooden sword, even causing extremely severe bruises the size of fists. [30] As an adult, he was able to effortlessly slice through Muzan Kibutsuji's neck, the most fortified body part of the strongest Demon in existence.

Immeasurable Speed ​​and Reflexes: Yoriichi possessed unparalleled levels of speed that surpassed all other characters in the series, including that of the Demon King, shown when he was able to dodge every attack Muzan threw at him and nearly fatally injure Muzan with one move, despite the Demon King's own immeasurable speed and strength. [24] Even when Muzan was split into 1,800 pieces of flesh in order to escape, Yoriichi managed to reduce the number to 300 in mere moments. [25] Even on the last day of his life, he was able to easily attack Kokushibo, Muzan's strongest subordinate, nearly slicing his neck instantly, despite Yoriichi telling him when he would attack. [26] As another testament to his godly movement speed, Yoriichi Type Zero, the robot doll modeled after him used by Demon Slayers for training, was built with six arms because two arms alone could not replicate Yoriichi's movements. [27]

Yoriichi was a calm and respectful individual who wore a solemn and reserved expression at all times, rarely showing any outbursts of emotion. Overall, Yoriichi had a calm and collected disposition, evident when he was killing demons without changing his expression or when Muzan was taken by surprise by his immense skill because he seemed unassuming. Due to his gentle disposition and unchanging facial expression, most could not tell what he was feeling - the only person who could read his feelings without difficulty was his wife Uta. [5] He was also extremely humble, viewing himself as just another man and no one special despite his extraordinary abilities; one example being the time he performed the Solar Breathing forms for Suyako upon her request and almost seemed embarrassed afterwards. His brother also noted that Yoriichi had always had faith in the future and was confident that despite the Demon Slayers' immense power after they began using Breathing Styles, a generation would arise that would surpass his own. Yoriichi is a tall man with a slim and muscular build, fair skin, maroon eyes, and long, spiky hair with red tips that he keeps in a ponytail. He has an overall appearance similar to his twin brother Michikatsu, but unlike him, he was slightly thinner, had shorter bangs, and had wavier hair than him. Yoriichi is mostly expressionless, though at times a bit solemn and aloof. Yoriichi wore a red haori over a very pale orange nagagi kimono with a black umanori-style hakama, a pair of red-strapped zōri, and white tabi socks, with a Nichirin sword worn on the left side of his waist, conventional for most Demon Slayers. He sported hanafuda earrings created by his mother as amulets when he was thought to be deaf; he later gave them to his friend Sumiyoshi Kamado, who then passed the earrings down to his descendants.

Muzan Muzan is a tall man with a thin, muscular build and an abnormally pale complexion that can easily be mistaken for a sick and unhealthy person. He has curly black hair and piercing, almond-shaped eyes. His irises are cat-like in appearance and are a plum-red color. He also possesses sharp, blue nails on his hands. Physically, he appears to be in his twenties. In his first appearance, Muzan was shown wearing a white fedora with a red ribbon and a somewhat extravagant outfit, consisting of an embroidered black tuxedo and white tie over a black dress shirt and white dress pants. He also wore black loafers. As seen in Rui's memories of his encounter with Muzan, the Demon King once sported a slightly different hairstyle and outfit in the past. When he first met Rui, Muzan's hair was straighter and parted down the middle. He also wore a baggy tuxedo and a white half-cape over it. During his encounter with the lower ranks, he arrived disguised as an elegant woman with a bun hairstyle while wearing a long black yukata, causing the lower ranks to initially fail to recognize him. [10] Later, he transforms into his ultimate undercover identity: the sickly adopted son of an elderly couple, taking the form of a small boy with pale, white skin and silky-smooth, carefully coiffed black hair. His main attire in this disguise is a simple white button-up shirt and black cargo shorts with long socks and loafers.

Characteristics Career Demon (Progenitor) Human (Formerly) Gender Male Age > 20 (Human) [1] > 1,000 (Chronologically) [2] Height 179 cm (5'10½") [4] Weight 75 kg (165 lbs) [4] Hair color Black and white (from an anti-aging drug) Eye color Red plum [3]