World Thinks He Is A FOOLISH Duke, But He Secretly Build FANTASY Empire With MODERN Industrial

What the story is about

Oswald Charles, a man transported into a tower-defense game world, dies after following the story’s script—only to return to the beginning with his memories and system intact. Rejecting his role as a doomed villain, he uses modern knowledge and hard-won experience to feed the North, reform its armies, and build a territory capable of surviving the coming wars.