Webfor the sake of his upper moon one position, kokushibo has faced three challenges. Akaza took part in one of these conflicts. Kokushibo typically swallowed the. Webkokushibo (黒 こく 死 し 牟 ぼう kokushibō?) is the secondary antagonist of kimetsu no yaiba. He was a demon affiliated with the twelve kizuki, holding the highest position,. 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. Webkokushibo was a very powerful and skilled swordsman, and he is considered one of the strongest members of the twelve kizuki. Webkokushibo is the only demon who is capable of using breathing abilities, and his blood demon arts provide extra skills and powers, which is why he still maintains. Webkokushibo's moon breathing technique, coupled with his mastery of the transparent world and blood demon arts, makes him incredibly powerful and difficult to. Webhis appearance is distinctive, characterized by a mask resembling a traditional japanese demon with six eyes, denoting his rank. Kokushibo’s abilities as a demon include.