The story presents cunning and rebellious young men with the theme of young people's attitude towards sex and how it behaves. It is about a troubled post-90s girl, Cheng Xiao Yu, who is in her late teens. Due to the erroneous values ​​caused by her parents' divorce, she has been involved in various problems. Wang Xiao Fei is a very shy and quiet teenager, and he is deeply attracted to Cheng Xiao yu, so to express his love he gives her paper cranes and chases her every day in case she gets into trouble so that he can help her. What will happen to these two teenagers?