muzan

Muzan Kibutsuji (鬼舞辻無慘 Kibutsuji Muzan) is the main antagonist of Demon Slayer: Kimetsu no Yaiba. yoriichi tsugikuni vs muzan He is also the King of Demons, the progenitor of the demon race, and the leader of the Twelve Kizuki, an organization made up of the twelve strongest demons under his command