Gyutaro is a tall boy with messy green and black hair tied in a half up-half down ponytail hairstyle. He has pale skin, yellow eyes, and black dots that mark his face and skin. He wears a white button-up shirt, green tie with black patterns (which is the same for pants), and brown slip-on shoes. Gyutaro acts in a rude, mean, and brash way, not caring for anyone except his sister most of the time.