Kang Wannan's historical prototype is a rich man in Kangjiazhuang, Taigu County, Shanxi Province, who lived in/kloc-0 from the middle of the 9th century to the beginning of the 20th century. This character was created by the author in a specific time and space background and has certain historical and regional charm. Since the Ming dynasty, people in Taigu county have started to do business. In the Qing Dynasty, many people accumulated a lot of capital and became local rich households, and Kangshuinan was one of them.