蔡京
Gongsun Sheng learns that Liang Shijie, the prefect of Daming, is sending valuables to his father-in-law Grand Tutor Cai Jing in the capital Dongjing as birthday gift. He rushes to Dongxi Village in Yuncheng County to ask Chao Gai, the village's headman famed for chivalry, to partner him to rob the convoy. However, Chao has already gathered Wu Yong, Liu Tang and the three Ruan brothers to plan for the hijack. Gongsun makes a row outside Chao's house when he is denied entry. Chao comes out to personally admit him and is pleased that he harbours the same design.