Web'demon slayer' season 4 sets the kaigaku's story arc in motion, setting him up to be the next arc's primary villain. Webdriven by his burning envy and a desire for revenge, kaigaku sought to humiliate and ultimately destroy zenitsu. He aimed to prove his own superiority and. Webkaigaku’s transformation into an upper moon, one of the most powerful demons in the series, was the result of a twisted desire for power. 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, a seed of resentment began to grow within kaigaku. Zenitsu, the seemingly carefree slacker, possessed a natural aptitude for the lightning breathing techniques. Webmanga readers know that it detailed kaigaku's transformation into a demon and his master's death as a result. Webkaigaku, once a skilled warrior and trusted ally, was unexpectedly transformed into a demon. This puzzling turn of events has left many wondering who. 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.
