The relationship between superiors and subordinates is based on the query of Central Plains. The criminal suspect Xie Lei has a high working relationship with the victim Xiao Fang, which is a superior-subordinate relationship. The suspect works in a ktv in Taihe County, and Xiao Fang is also in the KTV. Colleagues at KTV said that Xie Lei and Xiao Fang have a good relationship and often have dinner together after work.