The novel tells the daily life of sisters in Beijing. My sister Mu Rong, an older leftover girl, is always on the road to dating in order to get out of her single life. My sister Mu Yi, a white-collar worker in a fashion magazine, is working hard because of her promotion. No one realizes that under the ordinary life, a turbulent undercurrent is gradually approaching, because the mother has buried a shocking secret. Between the ambiguous male boss, the sudden appearance of her ex-boyfriend, the second-generation suitors of the perfect rich, and the ambitious competitors, the younger sister Mu Yi is mentally and physically exhausted. After experiencing various strange blind dates, her sister Mu Rong discovered that the purpose of others approaching her was not simple. The mother's secret has to be revealed, and it turns out that there is a more mysterious and unpredictable power that has been dormant in the dark, just waiting for the right opportunity to ravage Siyu.