Jiang Wei, a top-tier transmigrator and experienced strategy mission specialist, finds herself trapped in the body of the villainous ex-wife from a 1950s Chinese novel. Upon waking in the opulent Jiang Residence in Lucheng, she learns she has been summoned from the countryside to marry Gu Ting, the chronically ill and terminal eldest son of the Gu family, in place of her twin sister, Jiang Yan. The marriage is a death sentence, as the Gu family is facing political exile and Gu Ting is near death. Jiang Wei’s mother, Shen Peirong, and father, Jiang Dahai, have always favored Jiang Yan, the legitimate daughter raised in luxury, while abandoning Jiang Wei to a cruel foster family in the countryside. Jiang Yan, a vicious supporting character known as a black koi, drains the luck and beauty of those around her using a jade pendant, leaving the original Jiang Wei ugly, dumb, and malnourished.
Jiang Wei quickly discovers the dark secrets of her family. She realizes that Jiang Yan is not her twin but the illegitimate daughter of her father and the Second Concubine, Chen Xiaolian. Years ago, Chen Xiaolian and Jiang Dahai switched the babies to elevate their own child to the status of the legitimate eldest miss. They also orchestrated the death of Jiang Wei’s maternal grandfather, Shen Zhen’nan, to steal the Shen family fortune. Jiang Wei, now equipped with a multiverse trading system and a three-story villa space, begins her counterattack. She acquires various magical items, including invisibility pills, strength pills, and x-ray vision, by completing tasks for other transmigrators in an online alliance group.
Her first move is to reclaim the jade pendant from Jiang Yan, which restores her own beauty and health while weakening her sister’s luck-draining abilities. She then systematically loots the Jiang and Shen family fortunes, stealing gold, jewelry, and even weapons hidden by her father. Jiang Wei also exposes the affair between the Second Concubine and the family butler, Zhao, sowing discord and suspicion among the family members. She manipulates Shen Peirong into hearing the Second Concubine’s inner thoughts, causing the mother to doubt her favored daughter and question her husband’s loyalty.
As the political situation deteriorates, the Gu family is targeted by their enemies, led by the villainous Huo Qi. Jiang Wei intercepts the looting of the Gu family’s assets, stealing them for herself before they can be confiscated. She also discovers that Gu Ting may have been reborn as well, harboring secrets about his illness and his intentions toward her. Despite the danger, Jiang Wei proceeds with the marriage, not out of obligation, but to change the fate of the Gu family and protect herself from the coming turmoil. She plans to use her knowledge of the future and her system abilities to rise to power, clear out her enemies, and secure a prosperous future for herself and her mentally disabled half-brother, Jiang Yunhe.
