At the wedding of her old classmate Yu Qiao, 25-year-old Xu Yi once again met Zhou Yang, a boy she had not seen for four years and whom she had liked for 10 years. The atmosphere was great and everyone drank too much. When she woke up, Xu Yi found that she had returned to 10 years ago, the semester when Yang Dudu came to school in the third week of junior high school. After a brief period of confusion and fear, Xu Yi decided that if he lived again, he would not be as timid as before. She believed that God arranged for her to return to her teenage years to give her a chance to bravely pursue love. In this case, let Xu Yi give it a go and deal with Zhou Yang.