Yu Ruyan, a modern white-collar worker who died of a complex heart disease, awakens in the body of another Yu Ruyan in 1988. The original owner was a woman raised in a patriarchal family that favored boys over girls. Her parents, particularly her mother Wang Dafen, had forced her into a marriage with Dong Zhange, a military officer, with the intent of extracting property from his family to benefit her two younger brothers. After Dong Zhange died on the battlefield just months into the marriage, the original Yu Ruyan was manipulated into handing over all assets to her parents. Once discarded, she wandered on New Year's Eve and drowned herself.
Upon waking, Yu Ruyan finds herself on her wedding day, being physically abused by Wang Dafen, who is forcing her to comply with the marriage arrangements. Unlike the original owner, the modern Yu Ruyan fights back, striking Wang Dafen with a shoe sole. Dong Zhange arrives and intervenes, protecting his new wife. He is a man of few words but possesses a strong sense of justice and duty. The marriage between them was arranged by their grandfathers, who were comrades in war, but the two had never truly met before this day.
During the wedding ceremony, Yu Ruyan distinguishes herself from the greedy original owner by accepting the marriage without demanding an exorbitant bride price, earning the respect of Dong Zhange's mother, Gu Yueting. Gu Yueting is warm and protective, immediately siding with her daughter-in-law against the abusive mother-in-law. When Wang Dafen later confronts Yu Ruyan alone, demanding the bride price money, Yu Ruyan stages a dramatic self-injury with a fruit knife, making it appear as though Wang Dafen attacked her. This forces Wang Dafen to return the betrothal gifts and sever all ties with Yu Ruyan to avoid criminal prosecution.
Yu Ruyan learns that Dong Zhange is destined to die in a military mission three months after their wedding, and that his mother Gu Yueting will later drown under suspicious circumstances, followed by the death of Dong Zhange's father from grief. Determined to prevent these tragedies, she resolves to save both Dong Zhange and Gu Yueting. She integrates into the Dong family, winning over her new in-laws with her cooking and sensible behavior. She takes charge of the household finances, managing the family's affairs with competence.
The relationship between Yu Ruyan and Dong Zhange develops from a marriage of convenience into something deeper. Dong Zhange, initially reserved, finds himself attracted to Yu Ruyan's intelligence, independence, and warmth. Their wedding night is marked by awkwardness and a minor accident when Yu Ruyan injures her leg, but it also marks the beginning of mutual care and understanding. Yu Ruyan's modern perspective and resilience help her navigate the challenges of the 1980s military compound society, while Dong Zhange's strength and integrity provide her with the protection and support she never had in her previous life.
As Yu Ruyan settles into her new role, she begins to uncover the truth behind the original owner's death and the circumstances that led to the tragedies facing the Dong family. She must balance her desire to change the future with the need to maintain her cover as a obedient daughter-in-law. The story follows her efforts to prevent the deaths of Dong Zhange and Gu Yueting while building a genuine relationship with her husband and in-laws. Through her actions, she transforms the Dong family's fate, turning a marriage of obligation into one of love and mutual respect. The narrative explores themes of rebirth, female empowerment, family dynamics, and the courage to change one's destiny.
