Kaigaku, as a Demon-Slayer, could never master the basics of Thunder Breathing (First Form) and this might be why he could never surpass his senior. Moreover, Kaigaku met his end with a similar ...

Kaigaku is an important character in Demon Slayer, and you probably didn't even notice him. It will later transpire that he ...

He reaches breakneck speeds and finishes Kaigaku with this move. The Upper Moon demon had no chance since Zenitsu was a fighter of a different caliber. The upcoming Demon Slayer movie trilogy will ...