Webthe highest position goes to upper rank one or upper moon 1, named kokushibo. Who is kokushibo, and what are his abilities? Is he stronger than muzan or. Webyou could argue that kokushibo's shock at his appearance pulled away his concentration enough for the red blade to start taking serious effect. But, kokushibo was still actively. Webmuichiro tokito, the mist hashira, fights against kokushibo, the upper rank one and his ancestor, in the infinity castle arc. He is killed by kokushibo's moon breathing, but not. Weblearn how tanjiro and nezuko kamado, with their friends and comrades, defeated kokushibo, the upper moon one, in the popular manga and anime series. The history of kokushibo from demon slayer: Kimetsu no yaiba, the tale of a moon that could not become the sun. Weblearn about kokushibo's dark past, personality, abilities, and relationships in this comprehensive article. Find out how he became a demon, why he hates his. Webkokushibo is the secondary antagonist of the manga and anime series demon slayer: He is a former samurai and the twin brother of yoriichi tsugikuni, the. Webkokushibo is the upper moon one demon and the twin brother of yoriichi tsugikuni, the strongest demon slayer. Learn about his appearance, personality, powers, and how he.