aMuzan is 1000 years old, but has the appearance of a young man in his early twenties. He has black hair and bright red eyes that resemble cat eyes. He often wears elegant clothes and a white fedora with a red ribbon. Muzan is cold, brutal, and arrogant. That's why he can't stand failure under any circumstances. Leading to him punishing those who lost or those he deemed weak. With his authority, he does not like being asked or given orders by others, nor does he take his enemies seriously.