The heroine, who was born into a martial arts family, dies unexpectedly. Her soul travels to modern London in the Victorian era and becomes Eve, a frail and orphaned girl from a poor family. She discovered that she was the replacement for the missing real daughter of the Duke's family, and was sent into the top wealthy Childe family by her selfish relatives, becoming the marriage partner of the ruthless CEO (the actual leader of the family). This wealthy family has a strict hierarchy and constant disputes, comparable to an ancient palace. Relying on her knowledge of martial arts theory and combat experience in her previous life, Eve pretended to be a strong person with "high martial arts skills" in front of everyone to intimidate Xiaoxiao. In fact, her body was extremely weak, and every time she "took a shot", she was risking her life. She deals with the covetous family members, yandere rivals and vicious relatives who want to seize the inheritance. Using her wisdom and insight into human nature, she gradually transforms from a stand-in who can be manipulated to become the real mistress of the Childe family. At the same time, she and her nominal husband, the CEO who only treated her as a pawn at first, went from a contractual couple to a true soul mate through repeated trials and cooperation.
