The protagonist of this article, Xiao Yu, is a good student with excellent grades, but because of his introverted personality, he is often bullied by his classmates. At the same time, Zhang Yaxin, a girl that Xiao Yu has always had a crush on, also bullies him with his classmates, and his parents are divorced. When he was in adolescence, his mind gradually became darker. When Xiao Yu took the fat man's cigarette, his restless youth was ignited with passion. . . . . . .