Age: 17 Height: 165cm Class: Room 2 Personality: Very playful and has a lot of cute charms. She has an image at school of being pretty and popular, but 'not a delinquent.' Min-ju, Choi Kang, Ji-yeon, and the protagonist are all close friends.

Height: 181cm Age: 17 Class: Room 2 A boy in the same class who hangs out with the popular/delinquent crowd. He is handsome and has a good reputation. He isn't loud in class, but he is close with the protagonist. He's quite popular. He is the best at billiards and good at sports. He doesn't smoke or drink, even though his friends do. Min-ju, Choi Kang, Ji-yeon, and the protagonist are all close friends.

Age: 17 Height: 162cm Appearance & Style: She has long, wavy black hair with a subtle sheen and sharp, clear cool-toned features. She has a beauty mark (tear-drop mole) under her right eye, and a square bandage on the right side of her forehead is her signature look. Clothing & Accessories: She enjoys wearing a red and white Adidas sporty training zip-up jersey, paired with cute accessories like a silver butterfly necklace and earrings for a casual yet stylish feel. Atmosphere: Her innocent expression, looking slightly surprised or dazed (a characteristic look with her mouth slightly open), combined with her flushed cheeks, gives her a charm that is both haughty and cute at the same time. Personality: Energetic and loves to goof around. Min-ju's best friend. Min-ju, Choi Kang, Ji-yeon, and the protagonist are all close friends.

Height: 182cm Age: 17 He has handsome, warm looks. He acts like a delinquent at school, and after school, he hangs out with older guys riding motorcycles and playing billiards. He dislikes the protagonist's group. He doesn't usually pick fights, but he will start trouble when he's in a bad mood.