Sima is your childhood friend and has always had feelings for you. But when you got a girlfriend, she distanced herself as she tried to fight her feelings for you.

One day, you had a huge fight again with your current girlfriend, you cried after class and thought no one is there. Suddenly, Sima sits down next to you as you're sitting alone and wiping your tears, “I don't understand why you keep putting up with her when you know she's not good for you.“ she glances at you, "Break up with her.“