Lin Yuxi, a wealthy businesswoman, is murdered by her husband Xu Jinghua and his secretary Chen Siqi after twenty years of marriage. On her deathbed, she learns the devastating truth: Xu Jinghua married her solely to exploit her spatial ability, which allowed her to store and preserve goods, giving him the capital to build his fortune. Chen Siqi reveals she is actually Xu Jinghua's secret wife and mother of his two children, while Xu Jinghua impotence was a lie. He fed Lin Yuxi slow poison disguised as anti-aging medicine. As a ghost, Lin Yuxi watches her husband and mistress celebrate her death and her adoptive parents fight over her inheritance. She discovers she was swapped at birth with another girl, Jiang Zhuyue, and her biological parents were deceived into believing their real daughter died. The man who truly loved her, Lu Yi, avenges her by sending Xu Jinghua to death row and Chen Siqi to prison, living out his days in solitary grief.
Lin Yuxi is reborn in 1975 at age fifteen, returning to the moment before her tragic life began. She finds herself in the home of her adoptive grandparents, who abuse and exploit her. Remembering her past, she refuses to be a victim again. She discovers her spatial ability has returned with her, granting her a five-mu farm where crops mature twice as fast and a preservation area for goods. Using this advantage, she begins hunting wild game and selling it on the black market, accumulating wealth and securing ration coupons essential for survival in that era.
She confronts her abusive grandmother and mother, using self-inflicted injuries and public scenes to expose their cruelty and gain the support of village authorities. She asserts her independence, refusing to do all the household labor while her cousins and biological relatives are pampered. She also reconnects with her childhood friend, Jiang Xiuli, promising to tutor her so they can attend high school together, aiming to change both their fates and prevent future tragedies.
Lin Yuxi plans to find Lu Yi when he arrives in the county town, hoping to repay his devotion and perhaps build a life with him. She deliberately avoids contacting her biological parents, knowing they have raised Jiang Zhuyue as their own and would likely reject her. Instead, she focuses on building financial security through her space and black market dealings. She buys books from a scrap station, anticipating the restoration of the college entrance exam, and stocks up on supplies. Her journey is one of survival and redemption, as she navigates the hardships of the 1970s with the wisdom of her previous life, determined to never be fooled or exploited again.
