The summer of that year was particularly noisy. Xu Yan transferred to another school in the second year of junior high school because of his parents' divorce and met Lin Lu, a girl who was a top student in science. The two fell in love with each other and gradually became dependent. Lin Lu's younger brother died unexpectedly due to asthma. Lin Lu fell into self-blame and fear of losing a close relative. Xu Yan accompanied her out of the haze, but at this time Xu Yan's mother remarried and he transferred to another school again. Neither of them could say goodbye properly. Can Xu Yan still abide by the agreement he had made with Lin Lu to take the entrance examination to the High School Affiliated to the Normal University...