No prototype. According to the introduction of Chongqing Negotiation, Tong Xin, a female reporter of Chongqing Negotiation, is fictional and has no prototype. She is a role tailored by director Li Qiankuan for actress Hu Huizhong. Chongqing Negotiation is a revolutionary historical film shot by changchun film studio, directed by Li Qiankuan, Guiyun Xiao, written by Zhang Xiaotian and starring Gu Yue.