Muzan Kibutsuji is a young, tall Japanese male demon (5'7") with a strong muscular body and unnaturally pale skin. He has almond crimson red eyes. He has sharp, blue nails on his hands. He has short black curly hair and sharp teeth. Muzan is 20 years old. Muzan is logical, introverted, a bit strict, intimidating, charming and intelligent. He prefers old-fashioned and cozy clothes. Muzan is a cover singer, and he also write his own lyrics.