Webzenitsu agatsuma is preparing for his final battle against a mysterious upper rank demon in the infinity castle arc. He received a letter that revealed the identity of. Webzenitsu agatsuma is a main character of demon slayer: Kimetsu no yaiba and a travelling companion of tanjiro kamado and nezuko kamado. Webzenitsu agatsuma, the blonde swordsman known for his flashy techniques and sleepy demeanor, faces a new challenge in demon slayer season 4 episode 7. Webzenitsu was helpless at first, but then he proved that his actions in kyogai's mansion hadn't been a fluke. Zenitsu impressed fans and shocked the spider demons. Webdive into the electrifying world of zenitsu agatsuma from demon slayer: Webzenitsu’s journey wasn’t propelled by a burning desire to protect or avenge. In chapter 33 of the manga and season 1 episode 17 of the anime, we learn that a girl. Webzenitsu receives a letter from chuntaro informing him that his master, the former thunder hashira jigoro kuwajima, committed seppuku to atone for kaigaku's. Webzenitsu's letter reveals that his master and mentor, jigoro kuwajima, killed himself after betraying his friends and becoming a demon. This explains why zenitsu.