Tianyuan Fighter is a domestic cartoon, also known as Musical Wonders 2, which tells the story of fourteen young musicians, Xi Hu Yun, Dongxing Aolong, Nangongyan and Xuanwu, growing into little heroes. They showed their great power in Tian Yun Interstellar. They use their wit, kindness, kindness, loyalty, justice and courage to fight the evil forces represented by the black bully and influence them with music and songs. Finally, the four became little heroes who benefited mankind and United society.