Xiaobao (played by Yang Liangyu)'s parents are negotiating a divorce, and they sent Xiaobao to the countryside to live with his grandfather temporarily. Xiaobao felt very uncomfortable coming from the bustling metropolis to the secluded countryside, and was in a bad mood. Xiaobao transferred to a local school with only 27 students, where he met a girl nicknamed "Big Bear". Although Big Bear is the same age as Xiaobao, he lives a very different life from him, which makes Xiaobao very emotional. Big Bear and a boy named Mingquan became friends, and Mingquan secretly liked Big Bear. Under the leadership of Mingquan, Xiaobao sweated in the free countryside and experienced a different taste of life. At the same time, the liberation of the soul also made Xiaobao begin to think about the importance of life, friendship and family affection.