Agent: Let You Lurk, and You Have Established an Organization?

[No one knows your name, but your achievements will last forever. Once traveling through time, Zhou You returned to the war-torn anti-Japanese era and became an agent of our party. In order to obtain information about the Japanese people, Zhou You disguised himself as a Japanese named "Kitahara Aikawa" and successfully penetrated into the enemy's interior. Codenamed... Thunder! Hear the thunder in the silent place, see the flowers in the colorless place. Within the enemy, he stole various secret combat plans of the Japanese Locust Army and effectively supported the frontal resistance war. He traveled among various forces, delivering large amounts of supplies to our party through the cracks, and indirectly provided help for the victory of the Anti-Japanese War. The Japanese people never imagined that there would always be such a "shadow" behind them. Always give them a fatal blow at the most critical moment!