Lin Haoran, Zhang Zhihan, Wang Xiaoyu and Su Qing met in an ordinary high school. In three years, they experienced arduous academic work, ridiculous club activities, obscure youthful love, unexpected misunderstandings and reconciliations, and the big test before the college entrance examination. The content of the four volumes closely revolves around life inside and outside the school, with multi-line narratives intertwined and advanced layer by layer - including humorous farce and self-examination of struggle and emotion. In the end, they each embark on a new journey and grow into better selves, and friendship and dreams become precious gifts to each other.