It tells the secret love story of the heroine Xu Xin. Xu Xin's family background was not good. His mother left when he was young and he lived alone with his grandmother. The boy she has a crush on, Yun Ling'an, is excellent in all aspects, but the status gap makes her afraid to confess. Later, they finally had an "intersection", but it was not a good match after all. Xu Xin could only watch him fall in love and get married in pain.
Later, Xu Xin wrote a letter, and the same sentence was always there: "It would be great if I never met you in this life..."
