The story begins with Lin Zhixing entering Class 1, Grade 3 of high school, and unfolds a series of humorous and light-hearted adventures about studies, friendship, love and family growth. On the school stage, the protagonists experienced exam pressure, communication barriers with parents, class cooperation, various conflicts and misunderstandings, but they also gained sincere emotions and growth. The three volumes respectively focus on life adaptation, collective struggle and graduation choices, with ups and downs, growth and jokes appearing alternately. In the end, Lin Zhixing achieved self-breakthrough in laughter and tears, and ushered in a new chapter in life with his partners.