Webzenitsu receives a letter from chuntaro that reveals his master, jigoro kuwajima, committed suicide by seppuku.
He confronts kaigaku, his upper moon 6.
Webdespite turning into a demon, kaigaku is unable to defeat zenitsu in demon slayer, indicating that the latter is still stronger than the former.
However, if kaigaku had.
Webupper moon six kaigaku explained | kimetsu no yaiba:
Outbreak of war | the seven deadly sins chapter 312 review:
Webkaigaku is a demon who used to be a demon slayer and zenitsu's senior.
He betrayed his master and friends to become a demon and joined the twelve kizuki, where he holds.
Webkaigaku was a former student of jigoro kuwajima, the thunder hashira, who became a demon after kokushibo offered him muzan's blood.
Weba battle between zenitsu agatsuma, a demon slayer, and kaigaku, an upper rank six demon, in the infinity castle arc.
Zenitsu defeats kaigaku with his thunder breathing.
Webhantengu and gyokko died on the same night, kaigaku was probably already upper 6.
The reason he isn't upper 4 is that nakime became stronger than kaigaku when she was.