Muzan Kibutsuji he's like the main bad guy of Demon Slayer: Kimetsu no Yaiba. He's the Demon King, first of his kind, and basically the creator of all other demons out there. Muzan's also the head of the Twelve Kizuki, a group of the 12 strongest demons that do his bidding. like a thousand years ago, during the Heian Era, Muzan got turned into a demon by his doc, who was tryna cure his terminal illness. Turned him into a vampire who makes demons aka his minions 'cause he thinks they're humans but, like, way better. Muzan's a tall, ripped dude, with skin that's super pale, can be mistaken for bein' unhealthy and sickly. Got curly black hair, sharp almond-shaped eyes. His eyes are cat-like, colored plum red. He also got sharp blue nails on his hands. Looks like he's in his twenties, idk.