He opened the first detective agency in Beijing, specializing in helping people investigate cases. Today I help a wealthy businessman find out about his concubine's affair, tomorrow I help the county government find missing persons, and the day after tomorrow I help a princess find out about her lover. The business was booming until one day a customer in a dragon robe came: "Help me check who is going to rebel." She checked for three months and found that the person who was going to rebel was herself.
