Yu Si (the heroine) is an ordinary high school student. Her life is unremarkable. She is currently studying in a private high school. She is quiet and gentle on the outside, but full of whimsical ideas and a bit of a bitch on the inside. The story takes place during the transition from freshman to sophomore year of high school when she is facing the liberal arts division. It is also the time when she meets Lin Yu (the male protagonist). At the same time, the story related to her and her friend Qi Qi is unfolding. . . . . .