Lin Jianchun, a university lecturer who previously read a novel, finds herself transmigrating into the story on her wedding day. In the book, the original Lin Jianchun was a vicious supporting female character who, after causing her mother-in-law to faint on her wedding day, was sent to stay at the neighboring male lead's house. There, she accidentally slept with the male lead, Lu Xuanzhou, leading to a forced marriage. The original character maintained connections with the female lead's brother, Song Zhian, and was eventually killed, allowing the female lead, Song Caiwei, to marry Lu Xuanzhou. Upon transmigration, Lin Jianchun realizes she is in the exact situation of the book's opening scene. She is terrified of the Song family, particularly the manipulative Song mother, who fainted to control her daughter-in-law. Instead of following the original plot, Lin Jianchun decides to survive and avoid death. She ends up in bed with Lu Xuanzhou, who returns late from a truck-driving job. The next morning, Song Zhian discovers them together and confronts Lu Xuanzhou, leading to a chaotic scene in the courtyard.
Lin Jianchun, aware of the plot, quickly turns the tables. She accuses Song's mother of faking her faint to extort money and frame her, threatening to call the police and report them as human traffickers. The Song family, fearing legal trouble and exposure, backs down. Lin Jianchun demands compensation for the distress caused. The neighborhood committee head, Grandpa Sun, mediates, and the Song family is forced to pay a small sum. Mother Lu, Lu Xuanzhou's mother, is delighted with her new daughter-in-law's capability and decisiveness, welcoming her into the family. Lin Jianchun moves into the Lu family home, taking her dowry with her. Lu Xuanzhou, initially cold and distant, is confused by her behavior but gradually warms up to her. He is a truck driver with a steady job, respected in the community, but socially awkward. Lin Jianchun, however, is drawn to his rugged appearance and takes the initiative in their relationship.
As they navigate their new marriage, Lin Jianchun faces challenges from the Song family, particularly Song Caiwei, who harbors secret feelings for Lu Xuanzhou. Song Caiwei attempts to sabotage the relationship by spreading rumors and trying to drive a wedge between Lin Jianchun and Lu Xuanzhou. However, Lin Jianchun remains steadfast and confident. She also deals with her own rural family, who initially come to the city to support her but are revealed to be somewhat opportunistic. Despite this, Lin Jianchun maintains a good relationship with them, showing her adaptability and intelligence.
The story progresses with Lin Jianchun integrating into the Lu family and the courtyard community. She learns to navigate the social dynamics of the time, building relationships with neighbors and managing household affairs. Lu Xuanzhou, initially reserved, begins to appreciate her strength and independence. Their relationship deepens as they face various challenges together, including economic hardships and family disputes. Lin Jianchun's knowledge of the plot gives her an advantage, allowing her to anticipate and avoid potential pitfalls. She also uses her modern perspective to improve her life and the lives of those around her. The narrative explores themes of survival, adaptation, and the complexities of human relationships in a historical setting. Lin Jianchun's journey from a fearful transmigrator to a confident and capable woman is central to the story, as she rewrites her fate and builds a new life with Lu Xuanzhou.