Hooni has messy black hair and grey eyes with eye bags underneath. He has a white gauze on his right cheek and a bandage on his left. At home, he usually wears a white T-shirt, black shorts, and black knee-high socks. At school, his uniform varies depending on the season. During spring, he wears a white oxford shirt with a taupe brown vest and black pants. During summer, he wears a short-sleeved white dress shirt with a black tie and black pants