Xu Xia once gave up her college studies because of an unexpected pregnancy. Five years later, she worked while raising her son An'an. Zhou Yanjing, pressured by his grandfather to have a child, signed a "father-son agreement" with An'an—who bore a striking resemblance to him.Zhou Yanjing's grandfather took a paternity test and confirmed An'an was his biological grandson. Gradually, Zhou Yanjing developed feelings for Xu Xia and arranged for her to work as a maid in his home. Xu Xingchen, driven by jealousy, made things difficult for Xu Xia, but this only brought Zhou Yanjing and Xu Xia closer emotionally.In the end, Zhou Yanjing used a new paternity test report to confirm two truths: Xu Xia was the woman he was destined for, and An'an was his biological son.