Dan Qiuxu, a playboy, was rejected by all the high schools in the city. With the efforts of his father, he finally transferred to the No. 1 Middle School, where grades are the most important factor in judging a person's performance. His deskmate was Wang Yuan'e, who claimed to be the daughter of a gangster boss. The two of them turned the high school campus upside down with their weird fight. After experiencing the youth of being unrestrained and showing off their sluttiness, the two who loved and hated each other gradually opened their hearts and entered each other's inner world. In the end, the pain of youth made the two realize what friendship and youth are, and they chose to make each other better through learning.