Lin Siyu is the most inconspicuous adopted daughter of the Lin family. In order to repay the kindness of raising her, she is submissive and lives a cautious life. However, when her sister's marriage partner, Gu Beichen, the heir to a top wealthy family, accidentally turned into a vegetative state in a car accident, her adoptive parents forced her to marry on her sister's behalf for a gift of five million. Everyone laughed at her for becoming a widow and becoming the most tragic victim of a wealthy family. The elder sister was even more proud, waiting to see her kicked out of the Gu family. Lin Siyu was heartbroken and accepted this absurd fate. On their wedding night, when she wiped Gu Beichen's body on the hospital bed, the man who had been sleeping for a long time slowly opened his eyes! It turns out that Gu Beichen was just setting up a trap to find out the family insiders and use them to his advantage. He was moved by Lin Siyu's kindness and tenacity, and decided to take this "fake" wife under his wings. From then on, Lin Siyu's life started to be in counterattack mode. During the day, she was an ordinary young lady from a wealthy family; at night, Gu Beichen taught her business tactics step by step and led her to understand the rules of survival in the upper class. When her adoptive parents and sister came to humiliate her again, Gu Beichen showed up with a group of bodyguards and protected his wife domineeringly: "Are you worthy of the woman who bullied me, Gu Beichen?"
