At a wedding, the groom (Super Zhe) and the bride (Mao Jun Jie) set up an ex-boyfriend table and an ex-girlfriend table, gathered the ex-boyfriends of the groom and the bride, and ambushed two dangerous encounters. At the wedding, the ex-boyfriend table and the ex-girlfriend table are either brothers, or tit for tat, or show their true feelings, or raise their glasses to celebrate. Men and men, women and women, men and women are humorous, laughing and cursing, reflecting the current love of modern people. Meng Yun (Han Geng) is an ordinary young man who lives in Beijing and has made little achievements in his work. At this "special" ex-girlfriend wedding, he accidentally meets the girl Xia Lu (Yao Xingtong) who appears in the "ex-girlfriend table" set by the groom. In this way, Meng Yun and his ex-girlfriend's husband's ex-girlfriend started a love that was caught off guard. Meng Yun runs a small company in partnership with two college classmates, Yu Fei (Ryan) and Rosie (Claudia). From the difficult years when they started their business at the beginning of college graduation, they cherish exclusive memories of youth with each other. However, Rosie's affection for badon min has gone from youth to the present. For fourteen years, she silently guarded Meng Yun, who loved Rosie without knowing it. Accompanied and witnessed by good friends Yu Fei and Xia Lu's best friend Xiaowen (Ban Jiajia), Meng Yun and Xia Lu's love has withstood the repeated tests of previous girlfriends, including their ex-girlfriend Lingling (Medina), ex-girlfriend MengMeng (Xiong Naijin) who is addicted to alcohol, ex-girlfriend Shang Dan (Ada) who spends a lot of money, and ex-boyfriend Park Eun-ho (Li Xiangye) who is poor. Rosie is engaged to a rich, mature and careful man, Zhao Ming (Zhang Hanyu). At the engagement party, Rosie, who was drunk, confided her heart, and Meng Yun also found her love for Rosie. Xia Lu couldn't face their feelings and ran away from the engagement party. Then Xia Lu and Meng Yun fell down the stairs during an argument, which led to Xia Lu's miscarriage. Xia Lu Meng Yun and Rossi's emotional fate is confusing.