Zhang Yaoyao, a young woman who worked at a rural clinic, died a tragic death in her previous life after being betrayed by her adoptive family and best friend. Having been switched at birth as a baby, she was raised by the Zhang family not as a daughter but as a servant, subjected to years of abuse and exploitation. Her adoptive sister, Zhang Guilan, pushed her down the stairs causing a miscarriage, after which the family confined her to a mental hospital for nine years until she took her own life. Fate granted her a second chance, returning her to ten years earlier, to the day of a critical incident that had originally ruined her reputation and led to her forced marriage into the Lu family.
In this new timeline, Zhang Yaoyao finds herself in a compromising situation with Lu Jin’an, a military captain and her childhood betrothed, after being drugged by her so-called friend Wu Haiyan. Unlike in her past life, where she was slandered as a seductress and married into a cold household, Zhang Yaoyao uses her knowledge of the future to navigate the crisis. She feigns an epileptic seizure to protect both her and Lu Jin’an’s reputations, exposing the Wu family’s malicious plot. Lu Jin’an, who had been believed to be infertile due to a war injury, is revealed to be healthy, and his initial coldness begins to thaw as he witnesses Zhang Yaoyao’s resilience and intelligence.
The core conflict centers on Zhang Yaoyao’s struggle against her exploitative adoptive family and her deceitful friend. The Zhang family, led by her abusive adoptive mother Liu Chunxia, views her as a commodity to be sold for a high bride price to fund their biological son’s marriage. Meanwhile, Wu Haiyan and her mother conspire to sabotage Zhang Yaoyao’s life to secure Lu Jin’an for themselves, though Wu Haiyan is secretly involved with Tang Ren, a man who also harbors ambitions for social climbing. Lu Jin’an, initially distant and bound by duty, becomes Zhang Yaoyao’s protector, confronting her abusive family and exposing the Wu family’s attempt to poison her.
A key turning point occurs when Lu Jin’an learns of the poisoning and threatens legal action, forcing the Wu family into a defensive position. He also discovers the extent of Zhang Yaoyao’s abuse at the hands of the Zhang family, vowing to shield her from further harm. Their relationship evolves from one of reluctant obligation to genuine care, with Lu Jin’an offering her financial support, new clothes, and a safe haven. However, their budding connection is interrupted by an urgent military order for Lu Jin’an to lead flood relief efforts in Xingling, a mission that in her previous life resulted in his severe leg injury and a year-long recovery.
Zhang Yaoyao, aware of the impending disaster, warns Lu Jin’an of the dangers, deepening his trust in her. Before he departs, Lu Jin’an proposes marriage, offering her a life of partnership and protection, and asks her to wait for his return. The story follows Zhang Yaoyao as she resolves to break free from her adoptive family’s control, seek out her biological relatives, and rewrite her destiny with Lu Jin’an by her side, while navigating the political and social challenges of their era.
