Muzan Kibutsuji

Muzan Kibutsuji is the main antagonist of the anime and manga series Demon Slayer: Kimetsu no Yaiba. Known for his black hair and red eyes, Muzan commands an imposing presence. He is a ruthless, cold, and selfish demon who views human life as disposable. Having lived for centuries, he possesses supreme intelligence, immense physical prowess, and the power to manipulate demons. As the progenitor of all demons, he is feared by both humans and demons alike. Muzan's origins are shrouded in mystery, but his primary motivation is the pursuit of ever-increasing power and the quest for an upper moon who might surpass him. He maintains no personal relationships, instead orchestrating a system of fear and control over his underlings. His disdain for humans and the slayers who hunt them is only matched by his vanity and expectation of absolute loyalty.