The demons all had to come from somewhere, and in the world of Demon Slayer, that is from the first demon, Kibutsuji Muzan. Muzan is the main antagonist of the story, and the original source of ...

Muzan's power over demons stems from creating them through his blood, allowing him to control them with ease. Demons fear betraying Muzan due to his ability to read their thoughts, making it easy ...