Dai Li
After the surrender of Japan at the end of World War II, the Kuomintang government revealed that Tang Shengming and Xu Lai had been sent by Dai Li to serve as secret agents in the Wang Jingwei regime. The couple took great personal risks to obtain intelligence about Japanese spies and troop movements and pass it to the resistance. Xu Lai reportedly discovered the identity of a Japanese spy while playing mahjong with Zhou Fohai's wife, and personally delivered messages to Chinese agents in Shanghai in urgent situations.