After the Car Accident, I Joined the Mysterious Army to Fight in the North and South

Come up with Something Normal, Logical, and with a Clear Main Line, an Agent Story or a Killer Story.

I want to read a book like "Spy: I Can Actually Recognize Spies". The male protagonist is not a loser, he is ambiguous when he sees a woman, and he cannot make a move when he sees a woman. Don't talk about all the great things at the beginning, just work hard for a small person to survive and help the country when you are able.