When Zihan, who had been married for 15 years, met by chance at a party, she learned that her good friend from college, Lin Quan, had been secretly in love with her. For so many years, he had been protecting Zihan as a friend. When he knew that Zihan was in trouble, he transferred money directly and provided help without saying a word. When he knew that she was getting married and had children, he chose to protect her silently. Originally, he thought that Zihan would be happy if he didn't bother him. But one day, she found that Zihan was not living as she wished. Lin Quan was very sad, but he didn't know what to do. Just when he was trying to strengthen himself and hoped that he could save Zihan, something happened to Zihan. Then, he met a girl who looked very much like the Zihan he just met. But, is she really back? Lin Quan was at a loss...
