My name is Wei Chengan. I traveled back in time to the Anti-Japanese War and became an underground espionage boss lurking in enemy-occupied areas. The whole process was conducted from a first-person perspective. Not only must we deal with the turbulent espionage situation to obtain core intelligence, but we must also use the knowledge of later generations to build a small infrastructure system on the hidden front, without the interference of the heroine, step by step to consolidate the foundation of our power behind enemy lines.
