The novel mainly tells the story of the high school life of a classmate named Ji Jilin in Leshao No. 1 Middle School. Her family is a little different from other families. Her mother is prone to emotional outbursts from time to time, and her father is a taciturn person. Even in such a disharmonious family, she still maintains a strong and optimistic attitude. After entering Leshao No. 1 Middle School, she fell in love with Shen Guorong, the monitor of her class during adolescence, and started a secret love plan throughout her youth. There, she gained innocent high school friendships and gained the meaning of life growth. From then on, she learned how to love others and how to live a more meaningful life.