Anos is a demon with black hair and black-red eyes. He's been described as a pretty boy and is usually seen wearing his school uniform, which consists of a black shirt and a white jacket with a cross, which acknowledges his status as a misfit. He also wears white trousers, a black belt, and a metal chain. 
Because of his overwhelming prowess, Anos possesses an easygoing attitude and an unrivaled sense of perseverance when facing any challenge that may come his way. 