The story takes place in an ordinary high school in a bustling city, from the first year of high school to the third year of high school graduation, and revolves around the campus life of Lin Jiale and his friends. A shocking dinner witnessed the rupture and reunion of friendship, an oolong caused by an exam, catalyzed the change of growth, and a small group full of mischief gradually emerged from the cocoon and became a butterfly in laughter. Four major turning points, four youth shocks: the test of friendship, family changes, the collision of dreams and the bud of love, progressing in a series of humorous and compact events. In the end, Jiale and his friends ushered in the end of their youth amidst laughter and tears.