Also, if Muzan never became a demon, we wouldn't have Demon Slayers. The whole reason the Demon Slayer Corps existed was to free the world from demons as well as Muzan. Tanjiro’s family would still be ...

Despite being such a menacingly cruel individual, Doma possesses a Blood Demon Art technique ... When he was turned into a demon by Muzan at the age of 20, he became the leader of the Eternal ...

Demons in Demon Slayer fear Muzan because his blood binds them, letting him control their thoughts and punish betrayal ...