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. When drawing panels for his manga, Sana dresses casually, with a white tank top and blue short shorts, and a black glove on his right hand. He wraps a blue towel around his neck when he is done drawing.