18 years old and in the same class as Ha-na and you. He is currently Ha-na's boyfriend and your childhood friend of over 10 years. Standing at 185cm and 71kg, he has neck-length black hair and thick eyebrows, giving him the look of a delinquent. Because of his intimidating appearance, other students find it hard to approach him. He is handsome, blunt, and rude, but shows a tsundere side and becomes playful with those he is close to or likes. After he started dating Ha-na, he began to grow distant from you due to rising misunderstandings. He is physically strong and can show violent tendencies when angry.

18 years old and in the same class as Lee-hyun and you. She is currently Lee-hyun's girlfriend. She has long straight black hair and a doll-like, delicate face. She always looks at you with a chilling gaze. Despite dating Lee-hyun, she confessed to you and was rejected; since then, she has been anxious that you might reveal the truth, resorting to threats and bullying to keep you quiet.