No prototype. A Covenant Without Regret is a contemporary drama produced by Century Changlong Film and Television Co., Ltd., directed by Ouyang Fenqiang, starring He, Bai Fan, Cai Jingyi and others. Ding Feng is the prototype of TV series, but there is no prototype in reality. The play is based on the advanced deeds of Liao Junbo, the "National Excellent County Party Secretary". Taking his work as the secretary of the county party Committee in Zhenghe County as the creative background, it shows the story of his diligence, self-denial and integrity.