Time Travel: I Fought the Japanese During the Anti-Japanese War

The smoke is everywhere, the Japanese pirates are attacking, invading my home, and violating our country. As a killer who wants to be an otaku, what should he do when he returns to 1938? Should he remove his armor and return to the fields, find a peach orchard, live and work in peace and contentment, or rise against the wind, and achievement is not prestige? Advice, don't click on it because it's really addictive! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.