This novel revolves around lovers Xu Zhou and Lin Xiao. Due to the pressure of reality, the two decided to break up. They found out the "breakup list" they wrote when they were passionately in love and executed it. In the process of completing tasks such as skydiving and street singing, heart-warming memories of the past continue to emerge. From the first acquaintance to facing difficulties together, the cracks and bonds in growth also emerge. As the mission progresses, they repeatedly pull and struggle to make choices between love and reality, experiencing inner entanglements and struggles. Finally, by completing key tasks, they re-examine their feelings for each other and make the decision to continue working together or break up gracefully.