Zhong Suian, a corporate employee working overtime, suddenly finds herself transmigrated into the body of a girl with the same name in a melodramatic novel about switched-at-birth daughters. The original protagonist, Ye Qiaoqiao, is the real daughter of the wealthy Ye family who was swapped at birth and only reunited with her family at eighteen. Rather than accepting a peaceful resolution, Ye Qiaoqiao pretends to welcome Zhong Suian while secretly orchestrating her humiliation at home and school. The red-haired bully in the classroom is one of Ye Qiaoqiao's followers, but Zhong Suian, unlike the original owner, does not endure abuse passively. She retorts sharply, leaving the bully speechless and earning laughter from the class.
As Zhong Suian processes the influx of memories, she realizes she has entered a world where prices have depreciated by ten thousand times. A Tiffany necklace worth eight thousand yuan in her previous life costs only eighty cents here. A luxury villa in Palm Bay, originally purchased as her eighteenth birthday gift, costs merely six yuan per square meter. Her bank balance shows over eight hundred thousand yuan, but the funds are locked behind a system that requires her to complete wealth unlock missions. The system offers missions such as working as a hotel waitress for one day to unlock two thousand yuan, or working as a real estate salesperson to unlock an unknown amount.
Zhong Suian accepts her part-time job at Yunlan Hotel, where she discovers her boyfriend, Lin Zixuan, is actually a wealthy young man who pretended to be poor to seduce her. He mocks her devotion and admits he only pursued her to please Ye Qiaoqiao, who hates Zhong Suian. When confronted, Zhong Suian reveals she knows about his family's impending bankruptcy and quits on the spot. Using her unlocked balance, she purchases the entire hotel, firing the abusive supervisor Sister Ying and promoting the kind roommate Xiaoyu. She then forces Lin Zixuan and his friends to pay their months-old tab, exposing their financial ruin as the Lin family goes bankrupt.
Zhong Suian reconnects with her biological family, the Zhong family, who have three sons and have doted on her since learning she is their daughter. Her third brother, Zhong Yaoran, works part-time at a campus parcel station to send her money, unaware she is now wealthy. Zhong Suian visits him at his sports university, bringing gifts including an entire Apple ecosystem and Hermès clothing. While there, she accidentally bumps into Shen Jibai, a silent tennis ace and a minor character from the novel who is currently experiencing family difficulties. Zhong Suian recognizes him as a potential ally and romantic interest due to his chastity and rising status in the original plot.
At Zhong Yaoran's tennis match, his partner Wang Hao blames him for the loss and tears his shirt, damaging the expensive Hermès outfit and pendant Zhong Suian had gifted him. Wang Hao mocks the clothing as fake, not believing Zhong Yaoran could afford such items. Zhong Suian intervenes, calls the police, and provides purchase records and an electronic invoice from Hermès proving the outfit costs over one hundred thirty-six yuan. Wang Hao's father arrives and is forced to pay forty-two yuan in compensation after the police verify the authenticity. Zhong Suian uses the incident as an opportunity to approach Shen Jibai, though he remains distant. The story follows Zhong Suian as she navigates her new wealthy reality, builds relationships with her biological family, and begins to reshape her fate while dealing with the lingering schemes of Ye Qiaoqiao.
