After Sun Wukong became a Buddha, he was named the "Fighting and Victorious Buddha" and lived on the Lingshan Mountain. However, the life in the Buddhist world was calm and monotonous, and Wukong gradually felt that he had nothing to do. His nature is lively and active, and he cannot adapt to this kind of life without desires and demands. By chance, Wukong violated the rules of heaven and was demoted back to the human world to practice again. He must start from scratch, face new challenges, and rediscover his original intention.