Qin Feng, an ordinary office worker, loses his memory in a car accident. When he wakes up, he believes he is still a 23-year-old university student, only to discover that he is now 28 and has been married for five years to Xia Wanqing, a cold and domineering female CEO from a vastly wealthier background. Starting from scratch, he gets to know their broken marriage all over again. As he struggles between letting go and protecting her once more, the two overcome their lingering resentment, face crises side by side, and ultimately rekindle their love, rebuilding their marriage and enjoying a happy family life surrounded by their children.