1, episode 3 Gao Xiaozhuang guessed that she was working with 5237. Tan Zhuoru asked him and himself to cheat the Japanese army. Gao Xiaozhuang admitted to Koizumi that he broke into Tan Zhuoru's room at night, but Koizumi didn't believe it at all.
2. After the September 18th Incident, the Japanese invaders built a military fortress named "Oriental maginot line" on the Sino-Soviet border. Mary, the adopted daughter of the Soviet general in China, sneaked into the northeast of China to investigate the fortress, but was unfortunately captured by the Japanese army. The Northeast Anti-Union sent an investigator Long Wen to rescue Mary. Magician Gao Xiaozhuang, hunter Hu Dazhuang, national army female agent Tan Zhuoru, Northeast Army officer Wei Kunning and others participated in the rescue.