Beijing, Valentine’s Day, optometrist Li Xinfeng and Guo Zi, who is in his 60s, met each other at the flower market, and happened to move to the same building. Li Xinfeng PK Guo Zi, the two began an interesting story of enemies on a narrow road. Single mother Li Xinfeng was heartbroken by the divorce of her son Qi Yue and his daughter-in-law Xie Hanna; Guo Zi's two older daughters Qingrou Qingying are still unmarried. Xinfeng thoroughly analyzed the problem of Qingrou and Qingying, and also brought Guo Zi and his widowed comrade Yu Xiaohong together; Guo Zi also accompanied Xinfeng in dealing with his son and daughter-in-law. Police officer Qing Rou and her lawyer boyfriend of five years were in crisis. Li Xinfeng came up with the idea to ask Guo Zi to give up her house for the two of them to get married. The two finally got married. Advertising company manager Qing Ying also resolved the misunderstanding with netizen Feng Dazhuang and got married to his blind date Sun Ying Qinse. Li Xinfeng's son Qi Yue insisted on divorcing Hannah because of career failure. Guo Zi helped a lot. A year later, Qi Yue's debt was paid off and the two reconciled. Guo Zi and Li Xinfeng, door to door on the sixth floor, became a family.