When Jiang Xiaozhen was seventeen, she loved someone, a man seventeen years older than her. When she was young at that time, Jiang Xiaozhen always had the illusion that her life was short. On the day Yu Zeshu left, Jiang Xiaozhen wrote a letter in tears and sent it seventeen years later: It was you who said that we could fall in love at the same age. Now you can no longer dislike me for being seventeen years younger than you.