Michikatsu Tsugikuni

Kokushibo is a tall man of muscular build with a pale complexion. His appearance is described as profoundly majestic and dignified.

Kokushibo can evolve into a more grotesque and monstrous form, with protruding fangs and mandibles, large, uneven white horns on the front and back of his head, pointed nails, red outgrowths on his face, his pupils looking in 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.

He possesses long, spiky black hair with red tips that he keeps in a ponytail. In his demon form, his most notable feature is the three sets of eyes on his face with yellow irises and red flesh sclera that have black straight lines diverging from each iris. Kokushibo also has red markings resembling flames on the top left side of his forehead and the bottom right of his chin.   As a human, Kokushibo's look is almost identical to his demon form, except for the number of eyes, his eminent eyebrows, and his less light skin. His eyes have dim purple irises and normal, white sclera as a human.

Indomitable Will: Kokushibo possesses tremendous willpower and an indomitable spirit. Despite his decapitation at the hands of several Dark Elves, he forced his regeneration to evolve and regrew his own head, all because he didn't allow himself to stop until he accomplished his goal.   Tactical Intellect: As a talented swordsman, Kokushibo has experienced countless battle situations and threats, which he has learned to overcome.   Biological Absorption: Kokushibo possesses the ability to absorb human and demon bodies through physical contact. Although this trait has never been displayed, it was stated that Kokushibo would absorb the demons that challenged him and were defeated.   Flesh Manipulation: Kokushibo possesses the ability to manipulate his own flesh to a high degree. In terms of changing his body, he can alter his face to posses 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, a tsuka, and its own scabbard. Because of this, his katana can never be destroyed, as he can regenerate it like he would with normal wounds. He also displayed the ability to grow and protrude dozens of blades from his body, allowing him to perform a multitude of slashes from them without a swinging motion. After being decapitated, Kokushibo greatly morphed his body to adopt a more beastly and grotesque appearance, with 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. Furthermore, he can freely manipulate the shape of the blade, as shown when he grew three additional blades from the original blade to increase its reach and size, turning it into a weapon similar to the Shichishito (Seven-Branched Sword).   Immense Regeneration: Kokushibo possesses one of the most powerful regenerative abilities in existence. His regeneration speed is even faster than Akaza, regrowing his ear and right shoulder effortlessly. After being decapitated by serveral Dark Elves, Kokushibo was able to regenerate his entire head and successfully conquer death from a decapitation. 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, but he was able to regrew his head into his normal state after the fight was done and with enough focus.   Monstrous Transformation: After regrowing his head while battling Dark Elves, 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 in 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.   Demon Mark: Kokushibo awakened his Mark when he trained under Yoriichi. The Demon Mark drastically improves the abilities of an individual, making them much stronger and faster than what they can achieve normally.   Transparent World: Kokushibo has the ability to access the Transparent World, allowing him to see the muscles, blood flow, and joint movements of his opponents, as well as accurately predict and anticipate their movements and attacks.   Immense Durability: Kokushibo possesses incredibly high durability. His neck is so resistant that several Dark Elves barely succeeded in cutting him despite swinging their weapons with all their might.   Immense Speed & Reflexes: Kokushibo possesses immense levels of speed. He displays his phenomenal speed on multiple occasions while fighting, moving so fast he appears to teleport. He can slash off an arm and torso so fast that his arm doesn't even appear to move. After transforming, Kokushibo is able to move so fast, he appears as a blur.   Immense Strength: Kokushibo possesses incredible physical strength. He is able to crack the ground just by stomping and he is capable of wielding a gigantic sword much heavier and longer than a regular katana and swinging it incessantly at incomprehensible speeds without rest or much effort. After transforming, Kokushibo was able to slice off an 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 repeatedly torn off and destroyed, he never once showed a sign of pain or agony. Even when his head was being crushed, he remained steadfast.   Extrasensory Perception: Kokushibo possesses honed sensory abilities that allow him to detect the presence of others outside his normal range of perception. Kokushibo also seems to be able to keep track of the locations of his peers.   Menacing Aura: Kokushibo possesses a menacing and overwhelming presence that startled even Akaza.   Master Swordsman: Due to training and refining his swordsmanship skills getting a major boost to his physical capabilities, Kokushibo has become one of the most powerful and skilled swordsmen to have ever lived. His swordsmanship was already outstanding, as he learned many of his techniques from Yoriichi himself. Kokushibo's swordsmanship is further empowered with the development of his own Blood Demon Art, which greatly improves the lethality and power of his techniques, making every single one of his sword swings incredibly deadly.   Moon Breathing (月の呼吸 Tsuki no kokyū?): Kokushibo is the first demon that utilized Breathing Styles. His Breathing Style, in particular, is one of the most dangerous and powerful ones displayed thus far. Enhanced with his Blood Demon Art, he can create many chaotic crescent-moon blades when slashing that vary in length and size in crescent shaped sword attacks. Kokushibo had continued to develop this Breathing Style and had created over a dozen techniques.   Crescent Moon Blades: Complementing his Moon Breathing, Kokushibo's Blood Demon Art allows him to create and manipulate dozens of sharp blades shaped like traditional crescent moons from his flesh katana. They are implied to have been created from his blood and can be either a bright yellow or a bright blue in color. These crescent moon blades are innately chaotic, constantly changing in size, direction, and speed, making Kokushibo's attacks extremely unpredictable and unreadable as they have no set pattern at all. This Blood Demon Art greatly enhances the power of his techniques, making every single one of his sword swings extremely deadly and dangerous. He also seems to be capable of using his Blood Demon Art as long as his katana is unsheathed, allowing him to create crescent moon blades even without swinging his sword or unleashing a technique.   First Form: Dark Moon, Evening Palace (壱ノ型　闇月・宵の宮 Ichi no kata: Yamidzuki - Yoi no Miya?): Kokushibo draws his katana and performs a singular horizontal slash following a crescent shape, creating numerous chaotic crescent blades along its path, before sheathing it back into his scabbard. This technique is extremely reminiscent of Iaijutsu.   Second Form: Pearl Flower Moongazing (弐の型　珠華ノ弄月 Ni no kata: Shuka no Rōgetsu?): Kokushibo performs three crescent-shaped slashes while releasing a multitude of crescent moon blades along with them.   Third Form: Loathsome Moon, Chains (参ノ型　厭忌月・銷り San no kata: Enkidzuki - Tsugari?): Kokushibo performs two extremely broad crescent-shaped slashes directly in front of him, from which a storm of smaller crescent moon blades is released.   Fifth Form: Moon Spirit Calamitous Eddy (伍ノ型 月魄災渦 Go no kata: Geppaku Saika?): Kokushibo creates multiple long and curved slashes layered over one another, essentially creating a vortex of crescent moon blades. This technique was performed without Kokushibo swinging his katana.   Sixth Form: Perpetual Night, Lonely Moon - Incessant (陸ノ型　常夜孤月・無間 Roku no kata: Tokoyo Kogetsu - Muken?): Kokushibo rapidly performs a multitude of curved slashes several meters in front of him that release a wild barrage of crescent moon blades capable of slicing up the surroundings.   Seventh Form: Mirror of Misfortune, Moonlit (漆ノ型　厄鏡・月映え Shichi no kata: Yakkyō - Dzukibae?): Using his altered katana, Kokushibo performs a frontal crescent-shaped slash that unleashes numerous straight and curved slashes that expand outward.   Eighth Form: Moon-Dragon Ringtail (捌ノ型　月龍輪尾 Hachi no kata: Getsuryū Rinbi?): Using his altered katana, Kokushibo performs a massive, long-ranged, curved slash that leaves dozens of crescent moon blades along its path.   Ninth Form: Waning Moonswaths (玖ノ型　降り月・連面 Ku no kata: Kudaridzuki - Renmen?): Using his altered katana, Kokushibo performs multiple curved slashes, all in close proximity, that leave numerous crescent moon blades along its path.   Tenth Form: Drilling Slashes, Moon Through Bamboo Leaves (拾ノ型　穿面斬・蘿月 Jū no kata: Senmenzan - Ragetsu?): Using his altered katana, Kokushibo creates three rotating circular saw-like slashes with crescent moon blades following their path.   Fourteenth Form: Catastrophe, Tenman Crescent Moon (拾肆ノ型　兇変・天満繊月 Jū Shi no kata: Kyōhen - Tenman Sengetsu?): Using his altered katana, Kokushibo performs a multitude of curved slashes that expand outward in every direction and incrementally grow in size, essentially creating an omni-directional vortex of crescent moon blades that surrounds him.   Sixteenth Form: Moonbow, Half Moon (拾陸ノ型　月虹・片割れ月 Jū Roku no kata: Gekkō - Katawaredzuki?): Using his altered katana, Kokushibo swings upward, sending six curved slashes crashing down several meters in front of him, powerful enough to leave craters in their wake.   Fire Immunity: Like all Demons, Kokushibo possesses a natural immunity to standard flames.   Transformation: Kokushibo can transform himself into his demon form and back to human form.   Fangs: Kokushibo has a mouth full of razor-sharp fangs.

Kokushibo wears a purple-and-black hexagonal-patterned nagagi kimono and black umanori-styled 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 wrapping of the handle of his sword. The tsuba and blade are shown to have eyes and veins. The scabbard is also fleshy in appearance.

Flesh Katana: As a Demon Slayer and user of a Breathing Style, Kokushibo wields a warped version of a Nichirin katana. Created from his own flesh and blood, his body's immense durability and hardness allow it to be just as sharp, if not more so, as a normal Nichirin weapon made from Scarlet Crimson Iron Sand (猩猩緋砂鐵 Shōjōhi Satetsu?) and Scarlet Ore (猩猩緋鑛石 Shōjōhi Kōseki?). Its blade is blood-red, with a veiny appearance, and numerous eyes cover the blade and the tsuka. However, it is unknown whether those eyes can be used to extend his vision. His katana's tsuba is circular with four slight indentations, a center with three eyes and several black veins, and a golden border. He carries it inside a saya at his waist that shares a similar fleshy appearance.   Standard Nichirin Katana: He also sometimes carrys around a traditional Nichirin katana that is light purple in color and had a tsuba that was rectangular shaped with four angular indentations, a black center, and a golden border. Along with it, he also carrys a standard sword sheath that was black in color.

Cisgender

Heterosexual

Trained Samurai

Veteran Hunter in the Monster Hunter Guild

Independent, Logical, Quiet, Strategic, Analytical, Curious, Decisive, Dismiss emotions, Innovative, Higher on conscientiousness, Intuitive, Social frustrations, Creative, Determined, Harmony minded, Unromantic, Judgmental, Perfectionism, Productive, Rational, Reserved, Structured

Michikatsu Tsugikuni is the older twin brother of Yoriichi Tsugikuni.