DS | Kokushibo

Kokushibo

Male

Unknown

6'3

Straight

Demon/human

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. He presumably used 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 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

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, 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 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).

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. Through this ability

Flesh Katana: As a former 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 (猩しょう猩じょう緋ひ砂さ鐵てつ, Shōjōhi Satetsu?) and Scarlet Ore (猩しょう猩じょう緋ひ鑛こう石せき, 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. According to the second databook, Kokushibo named his weapon

Kyokokukamusari (虛きょ哭こく神かむ去さり, Kyokokukamusari?, lit. "Hollow Cry of the Godless").")
Breathing style ("Moon Breathing (月つきの呼こ吸きゅう, 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 over the centuries he had lived

First Form: Dark Moon, Evening Palace (壱いちノ型かた　闇やみ月づき・宵よいの宮みや, 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 (弐にの型かた　珠しゅ華かノ弄ろう月げつ, 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 (参さんノ型かた　厭えん忌き月づき・銷つがり, 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 (伍ごノ型かた 月げっ魄ぱく災さい渦か, Go no kata: Geppaku Saika?) - Kokushibo creates multiple long and curved slashes layered over one another, essentially creating a vortex of crescent moon blades. As stated by Sanemi Shinazugawa, this technique was performed without Kokushibo swinging his katana.

Sixth Form: Perpetual Night, Lonely Moon - Incessant (陸ろくノ型かた　常とこ夜よ孤こ月げつ・無む間けん, 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 (漆しちノ型かた　厄やっ鏡きょう・月づき映ばえ, 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 (捌はちノ型かた　月げつ龍りゆう輪りん尾び, 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 (玖くノ型かた　降くだり月づき・連れん面めん, 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 (拾じゅうノ型かた　穿せん面めん斬ざん・蘿ら月げつ, 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 (拾じゅう肆しノ型かた　兇きょう変へん・天てん満まん繊せん月げつ, 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 (拾じゅう陸ろくノ型かた　月虹げっこう・片かた割われ月づき, 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.

Kokushibo is a tall man of muscular build with a pale complexion

He possesses long, spiky black hair with red tips that he keeps in a ponytail. 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. His middle set of eyes has the kanji of "Upper Rank (上じょう弦げん, Jōgen?)" and daiji for "One (壱いち, Ichi?)" engraved in them, while his other sets of eyes feature black pupils and a cracked pattern in the irises. His top set of eyes replaced his eyebrows. Kokushibo also has red markings resembling flames on the top left side of his forehead and the bottom right of his chin. 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.

Reserved, Silent, Aloof, Maintaining, Unnerving tranquility, Mystery, Rarely speaks; when he does, he talks in a slow and emphatic manner that gives more gravitas and authority to his words. Rule-follower, Punctual, Shown to be humble as well, and he did not hesitate to admit his failure or complain of any difficulty. unwavering loyalty, Reservation, Dignity, Humility, Cold, Unforgiving, Harsh, Bordering, Cruelty