Anti-Japanese War: Search, Fight, and Retreat with the Japanese

[Resistance War + Search, Fight, and Evacuate] College student Chen Huan traveled to the Yan Kingdom in 1935, but as soon as he traveled across the country, he was captured by the Japanese and imprisoned. Fortunately, Chen Huan discovered in prison that he had a "search, strike, and withdraw" system. At the same time, using his Japanese skills, Chen Huan found a way to infiltrate the Japanese. In prison, Chen Huan relied on his identity to rescue a girl from the Soviet Union and started an adventure with her. "Where did you get such delicious chocolate?" "What kind of gun is this? Why haven't I seen it before? What is a 40mm grenade launcher?" "Japanese armored vehicles are difficult to deal with. What do you think you have? What does RPG mean?" "This machine gun is so powerful? You said it's called PKP?" Chen Huan looked at the various weapons he had bought from merchants using the search, attack and withdrawal system, and was determined to defend the Dayan River and Mountains to the death and try to prevent that horrific massacre. "There are still more than two years. If we work hard, what if we really succeed?"