The story begins when Lin Yiran transfers to a well-known high school, and gradually gets involved in the campus life of Zhou Kexin, Lu Jiashu and others. During the four years of high school, the six people experienced friendship and misunderstandings, first love and breakup, family crises and ideal choices. After entering a university in the same city, campus life continued with youthful waves. Everyone faced their own challenges and changes, and finally found their own 'light' in laughter and tears. The four volumes correspond to the first, second, third, and college stages of high school. The climax and changes are designed according to the growth characteristics of each stage. The humor and philosophy are shown through compact and simple plots, bringing warmth and resonance to readers.