In the autumn of 1937, after the fall of North China, the Shili Foreign Field became a whirlpool of competing forces. He took off his student gown and put on the coarse cloth coat of a merchant clerk. With his unfinished studies and secret mission, he sneaked into this city of glitz and decadence. There is no direct confrontation with bullets and bullets, only side conversations in tea shops and wine shops, clues in account books and documents, and heartbeats and alertness during late-night meetings. Using his gentle and reserved temperament as a shield and his photographic memory as an edge, he dealt with the Japanese military's special high school, Wang's puppet spies and the underground party. The righteousness of family and country is hidden deep in the heart, the love between children is as long as the lips and teeth, every choice is a matter of life and death, and every transmission is tied with hope. In the years of war, he was like a green duck in the troubled times, but he always moved towards his hometown, adhering to his undying passion and undying faith.
