Xie Xiaojun (played by Li Jiahang) and Wu Yue (played by Li Sheng) have been in love for only five months, and they decided to join hands in marriage. They vowed to support each other and grow old together no matter what difficulties and obstacles they faced. However, the reality is much more cruel than they imagined. Troubles and misunderstandings followed one after another, and parents and friends also became time bombs buried in their marriage. After going through ups and downs, can the two people still remember their previous promises and regard each other as the only one? Shasha (played by Zhang Yufei) is Wu Yue's cousin. She has not married yet, and she is inevitably full of complaints. She is full of disappointment in love and marriage. Coupled with the unsatisfactory work, Shasha often becomes a light bulb in Xie Xiaojun and Wu Yue's home. Ouyang Chendi (played by Guo Jiahao) and Xie Xiaojun met in kindergarten. They are really good friends who have played together since childhood. What kind of story will happen between the upright him and the carefree Shasha?