In March 1941, Miaojiang handed over the list of the military's secret service stationed in Shanghai and its personnel to Koji Tanaka, and officially became Ohashi Kazano's mole at the Chongqing Station of the military, codenamed “Milk”.Miaojiang was worried about being exposed, and Tanaka told her that Daqiao had its own arrangements.Immediately, the Japanese Yomiuri Shimbun published the notice of Ou Xiaoan's departure from the Chiang government, and the military commander confirmed that it was Ou Xiaoan who betrayed the military commander's intelligence network in Shanghai.