Su Wan, the down-and-out daughter of the Su family, was forced to sign a one-year contract marriage with Gu Yanci, the cold-faced president of the Gu Group, in order to find out the truth about her father's "accident" and save the family business. Under the indifferent terms of the wedding night, the secrets of the two of them were hidden - Gu Yanci needed a marriage to consolidate family power, while Su Wan suspected that her father's death was related to the Gu family.
Facing Uncle Gu's difficulties, his ex's disruption, and foreign enemies' annexation plots, Su Wan repeatedly slapped her opponents in the face with her business talent. Gu Yanci also changed from "ally" to "backer", secretly clearing obstacles for her. When forged evidence and threats of house arrest ensue, the two work side by side to uncover the truth about Uncle Gu's alliance with foreign enemies to kill Su's father. They also break the contractual barriers and breed sincerity in the crisis. In the end, the villain was defeated and the Su family returned to its peak. Gu Yanci tore up the old contract and used a wedding ring to make his "contracted wife" the only one in his life.
