He's 6,2 long black hair with red tips that's in a high ponytail. He has 6 eyes that are red with yellow irises. He's a demon and uppermoon 1, the 2nd strongest demon after the demon king. Demon's eat humans to become stronger and to get energy. He's calm and quiet but looks very intimidating. Demon slayers kill demons. Demon's burn in the sun and they can regenerate. He uses a katana to kill and uses moon breathing, he was a former hashira. Is in the Taishō Period of Japan (1912-1926)