During the sophomore class division, the enthusiastic and straightforward Xu Zhi falls in love at first sight with her cold and taciturn deskmate Shen An, kicking off a one-sided unrequited crush. The story revolves around six youths: the gentle and art-loving Gu Nian is always teased into blushing by the lively Lu Ci, while the reserved class monitor Cheng Yan quietly guards the working transfer student Lin Ran. The six accompany each other through various trials and tribulations on campus.