Webmanga readers know that it detailed kaigaku's transformation into a demon and his master's death as a result. Websometime after the death of upper moon six daki and gyutaro he encounters upper moon one kokushibo and in fears grovels for his life. Kokushibo gives him his blood and. Webkaigaku is one of the supporting antagonists in the infinity castle arc in demon slayer. Originally, kaigaku was a demon slayer who was a disciple under the. Webhe literally said something else in the same episode: I'm shadow, the one who lurks in the shadow, to hunt the shadow Webkaigaku seemed to hate zenitsu and thought of him as unworthy to be taught by a former hashira, since he was always crying and was only able to master one. Akaza's natural strength is enhanced by his demon blood, so every move he makes is extremely powerful. In fact, the force of his strength is so powerful, even. Websince kaigaku is on of the 9 children gyomei took care of as a monk before becoming demon slayer, who also bears quite a grudge against kaigaku who brought tragedy on. Webduring a mission, he is confronted by the demon kokushibo (ryōtarō okiayu/jonah scott), and, in desperation to survive, he willingly surrends and. Webhowever, kaigaku’s true nature is revealed when he cowers in fear before kokushibou, willingly accepts muzan kibutsuji’s blood, and becomes a demon.
