Su Wanning, who is unemployed and down on her luck, enters into a one-year contract marriage with Lu Yanci upon his mother's suggestion, with both agreeing to be a nominal married couple. Amidst the trivial moments of living together, the two gradually fall for each other. As an old flame reappears and family conflicts arise one after another, Su Wanning mistakenly believes she is merely his shield, returns her salary, tears up the contract, and leaves in the rain. Lu Yanci suddenly comes to his senses and tries earnestly to win her back. Overcoming numerous misunderstandings, the two break free from the constraints of the contract and harvest genuine affection.