Jewelry restoration artisan Lin Xiaoman, to avoid her stepmother's harassment and protect family-inherited craftsmanship, signs a 100-million three-year contract marriage, first registering her marriage with a life-sized cardboard cutout. Living alone in a villa, she repeatedly fights back against Lin family humiliations, encounters the disguised Grandma Lu at a banquet, and when publicly mocked, CEO Lu Yanzhou appears to protect his wife. With ancient techniques for restoration she amazes everyone, shatters a pro-foreign designer's bet, and helps Lu uncover the truth about his father's car accident, jointly bringing down the behind-the-scenes Song family. Contract gives birth to true affection, the two hold a supplementary wedding, pass on intangible cultural heritage, and their whole family is fulfilled.