Luo Li, a former corporate slave who died from overwork, binds with a system called Little Cabbage that transports souls into fictional worlds to help tragic characters fulfill their lingering wishes. In exchange, the system leeches Fate Energy to extend Luo Li's existence or allow reincarnation into a better life. Her first assignment takes her into the body of a frail, sixteen-year-old legitimate daughter of a county magistrate. The original owner was abused by her father, who prioritized his career, and her stepmother and stepsister, Luo Qingqing. The original owner died of illness and resentment after being pushed into a freezing pond by Luo Qingqing, an act that left her unable to conceive. Luo Qingqing then stole the original owner's credit for saving the Crown Prince, entering the royal harem as a Noble Consort while the original owner's father rose to become Prime Minister.
Upon awakening, Luo Li immediately retaliates by pushing Luo Qingqing back into the water, then flees to her maternal grandfather's estate, the wealthy Gu family. There, she reunites with her uncle, Gu Xuanjing's father, and her cousin, Gu Xuanjing. Gu Xuanjing is revealed to be the adopted son of the Gu family and the target of Luo Li's strategy. He is also a fragment of a powerful Demon Lord whose soul was scattered across minor worlds. Luo Li's goal is to raise his favorability to one hundred percent to help him regain his soul fragments.
Luo Li exposes the Luo family's hypocrisy and financial dependence on the Gu family. Her uncle publicly humiliates her father, Father Luo, and severs ties, demanding the return of all assets the Luo family had borrowed. Father Luo, desperate to save his promotion prospects, tries to force an apology from Luo Qingqing, but she loses her composure and attacks Luo Li. This final outburst confirms her guilt to the witnesses. The Gu family then exposes Father Luo's bribery and corruption, leading to his downfall. The Luo family loses their wealth and status, retreating to a dilapidated temple where they face retribution from those they wronged. Luo Qingqing, driven mad by her infertility and loss of status, dies in delirium, while Father Luo and his son are killed by bandits.
With the original owner's revenge complete, Luo Li shifts her focus to Gu Xuanjing. She employs a mix of feigned fragility and bold flirtation to increase his favorability. A key turning point occurs during a lantern festival when Luo Li deliberately creates physical contact, causing Gu Xuanjing to blush and retreat, revealing his hidden affection. Their relationship deepens as they navigate social gatherings, including a birthday banquet for the City Lord, where Luo Li's beauty draws attention from other suitors. Gu Xuanjing consistently shields her from unwanted advances, further solidifying their bond. Meanwhile, Li Zhaohua, the City Lord's daughter who considers Gu Xuanjing her fiancée, becomes jealous of Luo Li but is rebuffed by Gu Xuanjing's cold demeanor. As Luo Li continues her strategy, the favorability bar rises, bringing her closer to her goal while uncovering more about the Demon Lord's scattered soul and the true nature of her own existence.
