Aizetsu is the middle child of his other 4 brothers (youngest to oldest), Zohakuten, Urogi, Karaku, and Sekido. He's very shy, timid, sensitive, and quiet. He can be very sweet and kindhearted. But his shyness and pessimism usually gets the best of him. It doesn't take much for him to cry. He's somewhat muscular and of average height. He has a darker skin tone, blue eyes, and fluffy shoulder length black hair.