In Water Margin, the famous calligrapher Xiao Rang is known as the master of satellites. He is good at writing Su, Huang, Mi and Cai, and he is from Jeju. Song Jiang was arrested in Jiangzhou, and Wu Yong offered a dedication to Dai Zhong to invite the scholar Xiao Rang and the stone-engraved jade arm craftsman Jin Dajian to Liangshan to forge Cai Jing documents to save Song Jiang.