The fact of a hidden divorce, which was triggered by a curatorial report by her boyfriend Chen Fang, made Nanfei suffer from the public attack of being a "mistress". Moreover, due to Chen Fang's dilemma between family responsibilities and lover status, Nanfei unilaterally proposed to break up and went to Shanghai to seek refuge with her best friend Qi Jiayi, who was about to get married. Unexpectedly, she ran into her best friend Qi Jiayi who was about to get married. After helping her to "get out of the trap" of her short marriage, the two jointly bought a house and formed a best friend alliance. In order to avoid the parents' urging to get married, under Qi Jiayi's "matchmaking", Jiao Yue, a neighbor who returned from Wall Street and suffered from depression, and Nanfei formed a temporary fake couple. Unexpectedly, the parents of both parties who were kept in the dark took turns to force the marriage battle. Chen Fang, who was chasing love thousands of miles without knowing the truth, and Ling Jiaoyang, who regarded himself as a male best friend but actually had a crush on Nanfei for many years, also turned enemies into friends and jointly launched a "scumbag identification" operation against Jiao Yue, which triggered a series of ridiculous misunderstandings...