When the Hero Is a Savvy Paradox Interactive Player

"Great heroes, we have summoned you here from another world to defeat the Demon King and the invaders, and save us from our dire predicament. Come forth! Five heroes!"

But these poor natives of another world have no idea that one of the five heroes is even more wicked and evil than the Demon King!

Who is he? He's Zhang Kan, a staunch advocate of medieval medicine, mapmaker, cannery owner, the Ming Dynasty's most loyal lackey, friend of Rome, the man who punches the Pope and kicks the Fallen Empire, regards human lives as numbers and borders as meaningless, and is a Paradox player!

The story of a Paradox player who transmigrates into a hero. This is a Western fantasy world where armies, historical figures, and technologies from civilizations of different eras in our timeline rain down from the sky. The protagonist's companions include Rommel, Napoleon, and many other historical big shots, along with the heroes and scum of Tongliao. The story spans several famous Paradox timelines, including TNO and KR, and follows the deranged adventure of a Paradox player. Watch how he saves another world through shady schemes like training Lin Dengwan, marrying off his daughter as a strategic maneuver, and boosting the economy with endless toll booths!

(A meme novel, so don't take it too seriously. The protagonist is deranged.)