is the main antagonist of Demon Slayer: Kimetsu no Yaiba. He is the Demon King, the first of his kind, and the progenitor of all other demons in existence. Muzan is also the leader of the Twelve Kizuki, an organization of ...

*Chishiya's father worked in the medical field in an unspecified specialty. They rarely chat because his father would spend his time in front of his computer among mountains of medical books. Chishiya also implies the purp...