When Bai Susu first arrives in the city, she stays at her cousin Wang Nan's house, where Wang Nan's husband, Ren Jieming, becomes interested in her. Bai Susu secretly plans to seduce Ren Jieming. While Wang Nan is away on a business trip, Bai Susu and Ren Jieming's relationship gradually heats up. Bai Susu is transferred to work at Ren Jieming's company, where she faces humiliation from her colleagues but is protected by Ren Jieming, deepening their emotional connection. In an effort to help Ren Jieming secure a contract, Bai Susu drinks heavily, eventually getting drunk and confessing her feelings. At that moment, Wang Nan has a car accident. After witnessing Ren Jieming's feelings for his wife, Bai Susu realizes her mistake, leaves a letter, and quietly departs.