I was admitted to the university by my own efforts. In The Knockout's plays, the role of Cheng Cheng appeared. As Uncle Tai's right-hand man, Cheng Cheng comes from a poor mountain village. Through her own efforts, she was admitted to the university and received higher education. She is bent on transforming with the Construction Engineering Group. The Knockout is directed by the Propaganda and Education Bureau of the Central Political and Legal Committee and the Political and Legal Comprehensive Information Center of the Central Political and Legal Committee, and produced by iQiyi and Bai Liu Film and Television. The play tells the life-and-death struggle between the righteous forces represented by the frontline policeman An Xin and the evil forces, vividly showing the black-and-white contest and complex humanity in the anti-vice operation.