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. Webzenitsu agatsuma vs kaigaku is a battle that took place in the infinity castle. It focuses on the battle between demon slayer zenitsu agatsuma against upper rank six kaigaku. Webkaigaku has consumed enough human flesh to find his place among the twelve kizuki. He replaced gyutaro and daki as upper rank six. Webhaving received a significant amount of muzan kibutsuji’s blood, kaigaku’s transformation into a demon is a testament to his resilience against the demon king’s blood. Webhis fighting skills and training as a hashira make him a unique demon and allow him to consume numerous humans in a short time. With a true member of the twelve kizuki present on mount natagumo, tanjiro realizes it must possess a higher concentration of muzan 's blood, reaffirming his goal to extract. Webkaigaku (獪岳 kaigaku) was a former demon slayer and uses the breath of thunder in the kimetsu no yaiba (demon slayer) series. After becoming a demon he replaced daki. Webhe beheaded kaigaku, which led to his demise. In the end, yushiro rescued and treated zenitsu’s injuries. In a dream, zenitsu reunites with jigoro, who tells him that. Webkaigaku is the replacement upper moon 6, a demon boss capable of using both breathing and bda skills in demonfall. He behaves very similar to a slayer boss,.
