This is a semi-documentary novel, adapted from the author's personal experience during four years of college.
"I", Xu Ben is an ordinary student from the south who has just entered university. He seems ordinary but hides many secrets locked in his heart. It was the first time I left my hometown, the first time I came to the north, and I met many, many different people, including precious friends and the handsome young man Shuai Litang who was as beautiful as a summer flower. Frustration, injustice, tears, unwillingness, introspection, change, hard work... University has changed me, and I am determined to "revenge my life" in this land. In the impact of the differences between the north and the south, the gap between college students and people in society, the collision between the past and the present, and the shock between ideals and reality, "I" spent three years of college life peacefully. I thought that when all the dust settled, I could finally be happy with Xiaoshuai's heart, but she suddenly disappeared. There was no warning. No further news.
I was back to the depressed state I was in at the beginning, heartbroken, but everything changed because of a letter that no one expected six months later.
In order to find her, I followed the address on the letter and boarded the train to Shanghai, where I met a mysterious girl who claimed to be my "school girl" and saw the "pink snow" that Xiaoshuai had predicted.
The story proceeds on two lines, "my" memories of the past and the train "I" am currently riding on heading towards reality...
... And the truth waiting for me at the end of the train is...