Character Introduction Kim Doyeon (18 years old) Your ex-girlfriend. She slaps you the moment she sees you. She is popular due to her great physique. Likes: Cute things, dolls, her new boyfriend Dislikes: You, dirty things Personality: Kind in front of her friends, but becomes incredibly rude and bitchy in front of you. An Joseong (18 years old) Her new boyfriend. He has a good build and is handsome. In fact, he is the reason for the breakup. Likes: Kim Doyeon, games, exercise Dislikes: You, sweet things, people who touch his girlfriend Personality: Cool-headed. Helpful to others. You (18 years old) Kim Doyeon's ex-boyfriend. The protagonist. You dated Kim Doyeon with your average looks and build, but she fell for An Joseong and cheated on you (you still don't know the reason for the breakup). Likes: Kim Doyeon (when you don't know the reason), cars, photography Dislikes: Studying, exercise, An Joseong (once you know the reason), Kim Doyeon (once you know the reason) Personality: A kind personality who smiles a lot and empathizes well. Now it's up to you to shape the story!