The story focuses on Lin Xia and Su Mang, showing their youthful growth in three years of high school. The two got acquainted because of a task group, and were tit-for-tat at first, but later became friends due to an unexpected incident, and gradually got closer amidst many misunderstandings and secret loves. As their good friends, Jia Qi and Jiang Ran accompany each other and witness each other's growth and changes. Under the wonderful guidance of class teacher Lao Li, the four people experienced conflicts, misunderstandings, cooperation and the pursuit of dreams. From ignorance in the first year of high school to confusion before the college entrance examination, they experienced the rift in friendship, the test of family affection, the entanglement of love and the protection of dreams. The whole story is humorous and fast-paced. It promotes the development of the plot through life's bits and pieces, and finally allows everyone to get their own answers at the end of youth.
