Anti-Japanese War: the Enemy Is Green at the Beginning!

Zhang San traveled through time to the Anti-Japanese War and became a traitor. As a law-abiding young man in the 21st century, Zhang San is destined to be unable to defect to the Japanese. Fortunately, Zhang San obtained the "Green Devil System" after traveling through time. As the name suggests, if you cheat the devil, you can get various rewards from the system! Ding, it is detected that Yujiro Midoriya's wife is seducing the host, triggering the task: cuckold Yujiro Midoriya within 6 hours. Looking at Masako who was making secret glances at him, Zhang San sighed. "Hey, it's so hard for me!" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.