Because of an act of kind assistance, delivery driver Xia Zhixing forms a bond with Xingbao, who longs for a mother's love, and his father Li Sichen. Facing misunderstandings and a status gap, she always remains self-reliant and strong, using sincerity to protect the child, and also gradually making Li Sichen understand love and responsibility. As the mystery of her birth secret is unraveled, Xia Zhixing bravely pursues the truth, winning recognition with her wisdom and effort. From a chance encounter to supporting each other, the three harvest family affection and love amidst wind and rain, jointly building a warm home.