Episode 37 recap: Guan Xue persuaded Song Zhuo Wen to go to Japan.

Guan Xue and Song Zhuo Wen went mountain climbing together. Guan Xue said Nanjing, Yan'an, and Chongqing were all too far away, so they should climb a mountain and work up a sweat. Song Zhuo Wen and Guan Xue tested each other, exchanging riddles without revealing their true intentions. Guan Xue had many pigeons, and Song Zhuo Wen knew she used them to pass on information.

Suddenly, Guan Xue spoke up, asking Song Zhuo Wen to return to Xinjing with her and then go back to Japan. Song Zhuo Wen pretended not to understand and asked what was going on. Guan Xue asked expressionlessly, "Are you really planning to stay on this path until the end?" Song Zhuo Wen and Guan Xue fell silent, watching the city below being bombed by planes, a grayness filled with misery.

Qian Chong Li went to Long Tingzhang's house and told him that his son had died at the hands of the Japanese. Long Tingzhang was unwilling to believe it, so Song Zhuo Wu brought Purezi's father, who had witnessed Long Xinliang's death, to him. But to the Japanese, they were all just insignificant people, not human beings, all mere tools.

Captain Asano and Dr. Kojima got into an argument. Dr. Kojima didn't like Captain Asano because he only cared about his own experiments, and anyone who took up his time deserved to die. Qian Chong Li hoped that Long Tingzhang would help. Among their alumni was Dr. Kojima, and Long Xinliang had died at his hands. Qian Chong Li wanted Long Tingzhang to arrange a meeting with Dr. Kojima, but Long Tingzhang knew he wouldn't come unless it was through Gangqi.

The Japanese were planning to escape, but Guan Xue felt that their plans had changed. She told Director Jin that she was planning to leave with Hu Bin in three days, which was originally the task of the action group. They all lined up to take a photo together, and Guan Xue said the opportunity was rare, so they took a picture together. Pan Yue told Hu Bin that he had found a way out. In less than two years, he might become the director of the Fengtian Police Bureau. As for whether Guan Xue could survive, it was uncertain. Hu Bin had so many lives in his hands, and the Military Statistics Bureau might not let him go.

Pan Yue hoped that Hu Bin would have some trump cards in his hands, and the two of them decided to set a trap to capture Song Zhuo Wen. Hu Bin's purpose was simple: to torture him and even kill him. Guan Xue and Director Jin were preparing to retreat. Guan Xue obtained a gun identical to Pan Yue's, and her target was Song Zhuo Wen.

Pan Yue mentioned Guan Xue's uncle in Harbin, who was supposed to be dead. Pan Yue found many photos of the uncle. Guan Xue frequently visited his sanatorium and tortured him. Last month, the sanatorium said they could perform a surgery to make the uncle stand up again, but Guan Xue refused without hesitation. Hu Bin found it hard to believe, but then he realized that Guan Xue must have been abused by her uncle.

Pan Yue said all this to make Hu Bin give up on Guan Xue, as she could never have a place in her heart for him. Song Zhuo Wen wanted to successfully bring Dr. Kojima out and hand him over to Song Zhuo Wu, who would be waiting at the back door for the rendezvous. However, Pan Yue and Hu Bin had already set their sights on him, waiting to catch him by the hair.

Qian Chong Li felt that Song Zhuo Wen's plan was very unsafe. Everything was going too smoothly, but Song Zhuo Wen was confident. At this critical moment, they could only take a gamble. However, the Japanese were about to be defeated, and Qian Chong Li didn't want any unexpected situations. Little did he know that Song Zhuo Wen had already prepared himself for sacrifice. If there were any unforeseen circumstances, it would be his turn.

There might be trouble at the Sakura Club tonight, so Guan Xue decided to go drinking and not intervene. There was a class reunion at the Sakura Club tonight, and Dr. Kojima did show up. The atmosphere was tense, and everyone had their own hidden motives.