Webkaigaku’s betrayal leaves a deep scar on the demon slayers. His actions not only cost the lives of innocent people, but also cast a shadow of suspicion on. Webzenitsu blamed kaigaku for the bitter end of jigoro, and he also detested kaigaku’s decision to turn against humans. Who wins between zenitsu and kaigaku in. Webkaigaku's betrayal led to gyomei's imprisonment and jigoro kuwajima's death, fueling zenitsu's rivalry. Webnow a teacher of thunder breathing, jigoro ultimately killed himself in ritual suicide when kaigaku defected and became a demon. Jigoro was a good teacher, but. 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. Webduring the hashira training arc, kaigaku confronted kokushibo, the upper moon one. Faced with the threat to his life, kaigaku chose to surrender, expecting to be killed. Webthe manga revealed that kaigaku was the child responsible for letting a demon into the temple of the gyomei himejima before he became the stone hashira. 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. Webhowever, the hashira training arc proved that kaigaku was the cowardly one. During a mission, he is confronted by the demon kokushibo (ryōtarō okiayu/jonah.
