Nan Li is anxious about Huan Huan's decreasing grade, and she realizes the importance of a tuition class. Thus, Huan Huan faces a series of tough and excruciating tuition classes. The entire family revolves around Huan Huan entering high school. After a series of events, Nan Li and Xia Jun Shan finally realized their mistakes, and they plan to give their child a happy childhood....

This tells the story about a policewoman, Ran Dongdong, who solves the "Big Trap Case" and raises reflections and questions about marriage and love in the process of doing so....