Shen Jinjin is the reincarnation of the supreme alchemist from the Xuan Sect, possessing unparalleled skills in metaphysics, medicine, and spiritual arts. She awakens in the body of the youngest daughter of the bankrupt Shen family, who was betrothed to Gu Yanyan, the cold and disabled heir of the wealthy Gu family, eighteen years ago. On the day of the Gu family matriarch's birthday banquet, Shen Jinjin arrives in humble attire, only to be mocked and barred from entry by the family's security. She intercepts Gu Yanyan's car to hitch a ride, kissing him on the cheek as a fare, unaware that his aura is shrouded in black misfortune and his lifespan is dangerously short.
Inside the banquet, Shen Jinjin faces ridicule from the Gu matriarch and Li Wanwan, a woman scheming to marry Gu Yanyan. The matriarch attempts to humiliate Shen Jinjin by forcing her miraculous Huan Yuan Pill upon disabled servants, expecting it to fail. Instead, the pill instantly cures the servants, revealing its immense value and shocking the attendees. When accused of stealing the pills, Shen Jinjin asserts her legal status as the matriarch's son's fiancée, citing the original marriage contract made by the late patriarch. Gu Yanyan arrives and publicly affirms their engagement, silencing his grandmother.
Li Wanwan, rejected but ambitious, manipulates the Gu family's four adopted children, particularly the skeptical Gu Qingfeng, to distrust Shen Jinjin. However, crises soon force a shift in alliances. Gu Qingxue is kidnapped and cursed with head-lowering magic by a cultist; Shen Jinjin rescues her and dispels the curse. Shortly after, Gu Yanyan collapses as his stolen luck nearly kills him. Shen Jinjin transfers her own fortune to him through a kiss, saving his life and beginning to heal his condition. She then discovers that the children are victims of a Nine Revolutions Corpse Soul Formation and a life-borrowing curse cast by their relatives, Zhang Ting and Han Liwan. Shen Jinjin dismantles the formations, cures the children, and exposes the relatives' crimes, leading to their arrest.
Li Wanwan's brother, Li Jingze, arrives with his sister, unaware that Li Wanwan attempted to cast a substitute death curse on him. Shen Jinjin reveals the truth using a bone bracelet gifted by Li Jingze's biological sister, Pei Xining, who had secretly saved him. Li Jingze realizes his mistake and distances himself from Li Wanwan. Shen Jinjin then tracks the mastermind behind the curses to Changming Village, a location plagued by disappearances and guarded by a powerful Zhenguan entity known as the Town Coffin Woman. Accompanied by Gu Yanyan and police officer Zheng Chunyuan, she enters the village to confront the ancient evil and uncover the identity of the person systematically stealing Gu Yanyan's fortune.
