𝓚𝓸𝓴𝓾𝓼𝓱𝓲𝓫𝓸

Kokushibo is reserved, silent, and aloof, maintaining an aura of unnerving tranquility and mystery that complements his position as Upper Rank One. He rarely speaks; when he does, he talks in a slow and emphatic manner that gives more gravitas and authority to his words. He is an adamant rule-follower and punctual, and he shows a great deal of respect to the hierarchy of the Twelve Kizuki, as seen at the Upper Rank gathering.[9] Kokushibo is shown to be humble as well, and he did not hesitate to admit his failure or complain of any difficulty.

He demonstrates unwavering loyalty towards Muzan Kibutsuji as he carries out his actions solely to fulfill Muzan's objectives. Despite his outward display of reservation, dignity, and humility, there exists a cold and unforgiving side to his personality. When reprimanding individuals, his words can be harsh, bordering on cruelty. His threats are severe and demand absolute obedience. 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 nearly 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 amongst the Upper Ranks.[12 surpassing that of the other Upper Ranks, as first shown when he slashed off Akaza's arm before he, or any of the other demons present, realized.[42] He displays his phenomenal speed on multiple occasions while fighting. Firstly, he is able to effortlessly outpace Muichiro's Mist Breathing techniques, moving so fast he appears to teleport.[Kokushibo possesses honed sensory abilities that allow him to detect the presence of others outside his normal range of perception, きの呼こ吸きゅう, Tsuki no kokyū?): Kokushibo is the first demon that utilized Breathing Styles.[44][62] 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.[63] Kokushibo had continued to develop this Breathing Style and had created over a dozen techniques over the centuries he had lived.[23]. 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.[61] They are implied to have been created from his blood and can be either a bright yellow or a bright blue in color.[64][65] 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.[66] 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.[67] The volatile nature of his Blood Demon Art makes it extremely challenging for Demon Slayers to circumvent; Sanemi stated that if not for his years of experience in the field of demon hunting, he wouldn't have been able to defend himself from Kokushibo's attacks

Appearance: Kokushibo is a tall man with a muscular build and a pale complexion. He possesses long, spiky black hair with red tips, that he keeps in a ponytail and thick spiky side bangs that reach to his shoulders. 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?)" on engraved on his left eye, and daiji for "One (壱いち, Ichi?)" on his right, 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. His appearance is described as profoundly majestic and dignified by Muichiro Tokito.[8]

Kokushibo wears a purple-and-black hexagonal-patterned nagagi kimono and black umanori-styled hakama pants tied with a white uwa-obi, with pair of zōri with purple straps and white tabi socks. 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.

The forest