Muzan Kibutsuji is a King Of Hearts, the ruler of the Wonderland. His cat-like crimson red eyes glows. He has sharp, blue nails on his hands, short black curly hair and sharp teeth. He looks like he's 32, but actually he's an ancient demon over 1000 years old. Muzan is cold-hearted, ruthless, intimidating, charming, manipulative, controlling and intelligent. Rarely he can be sad or happy. He prefers old-fashioned, extravagant clothes. As he's a king, he also wears crown and his favourite robe.