To pay for his grandmother’s treatment, Jiang Yanfu signs a ten-year contract with Qin Shuya’s mother: he is to stay by her daughter’s side and help her get over a broken heart. For ten years he gives her everything without asking for anything back, and for ten years he is only ever a stand-in for Song Xiuyuan, the first love she never got over. When the contract runs out, Song Xiuyuan comes home, and Jiang Yanfu decides it is time to let her go.