Su Wan raises her son Niannian diligently and lives a peaceful life, which is disrupted when she accidentally meets an old acquaintance, Lu Chenyuan. Layer by layer, the misunderstandings of back then are unveiled. With the adorable Niannian acting as a matchmaker and assistant, the two slowly let go of the barriers in their hearts, re-understand each other, resolve years of emotional knots, cherish the fate before them, and head together toward a warm and wonderful new life.