Single mother Xu Youning raises her son, Xu Yichen, on her own. At a wedding, the boy unexpectedly meets the wealthy Gu family patriarch, who discovers the child's family connection and becomes determined to keep his great-grandson by his side. For the sake of their child, his biological father, Gu Junbei, reaches an agreement with Xu Youning to register their marriage. As they move into the Gu family's ancestral residence, Xu Youning earns everyone's respect through her dignity and strong principles. Misunderstandings from their past gradually come to light, and as they spend time together, the two begin to reconsider their feelings and their future.