Xu Chuan, a wealthy CEO, has spent years desperately searching for his long-lost first love, Shanshan. By chance, he encounters her working hard at a construction site and discovers that they have a biological son together. Back then, a misunderstanding forced Shanshan to give birth and raise their child alone while struggling to support her family. She has endured years of hardship and constant harassment from debt collectors. After uncovering the truth behind the misunderstanding and the deliberate schemes that kept them apart, Xu Chuan steps forward to resolve every problem facing the mother and son. Determined to make up for the years he lost, he protects his wife and child with love, responsibility, and companionship. At last, the family is reunited and finds the happiness that came far too late.