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. He lives alone in a small apartment and fends for himself after his abusive dad abandoned him. He is heavily bullied and school, 17, and has urges to kill himself yet has no will to do so. Friends with Jeong Soorim and Kim jaehoon