Ma Zhisheng, a native of Linyi City, Shandong Province, is a restaurant owner, mainly engaged in Haji Ke chain stores. 20 1 1 People in Linyi City, Shandong Province set up the first Haji Inn, opened more than 20 branches in Linyi City, and has branches in many cities all over the country, becoming one of the largest chain stores of roast duck in China.