When Zihan, who has been married for fifteen years, attends a casual gathering, she learns that Lin Quan, her good friend from college, has been secretly in love with her all this time. For years, he has stayed by her side as a friend. Whenever he hears she is in trouble, he sends her money without a second thought and does whatever he can to help. When he learns she has married and had a child, he chooses to watch over her quietly. He thought that if he stayed out of her way, Zihan would surely be happy. But one day, he discovers that things aren’t going well for her, and he is heartbroken. He doesn’t know what to do. Just as he tries to make himself stronger, hoping he might be able to save her, Zihan has an accident. Then he meets a girl who looks just like Zihan did when he first met her. But has she really come back? Lin Quan is at a loss...
