Boss Chen of Zhongtong refers to Dai Li, the boss of Chen Lifu, and Mao Renfeng (later renamed Secret Service), who succeeded the post of director after the air crash in Dai Li. At the beginning of scouting (not when Dai Li was the boss), Chen Lifu was in charge of the first place (later developed into Zhongtong) and the post of supervisor (I seem to forget, sorry), and Dai Li was in charge of the second place (later expanded into a prestigious Scout Bureau). But basically, the military system is just a signboard. Dai Li and Mao Renfeng were expanded from the Second Division to the Investigation Bureau of the Military Commission. They are fellow villagers, Dai Li is the deputy director, responsible for the specific affairs of the bureau, and Mao Renfeng is the secretary (the highest position he has ever held is the acting secretary). If there is any problem with the relationship between the superior and the subordinate, please point it out and ask for O(∩_∩)O haha ~