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

The demon king of the Demon Slayer universe, Muzan Kibutsuji was a force of evil ... allowing him to operate with humans without drawing unnecessary attention. I am a perfect creature that is ...

These three are responsible for some of the biggest tragedies in the Demon Slayer universe, but even with how malevolent they are, they have nothing on the original calamity— Muzan. Muzan's very ...