Reincarnated Into a Game as the Hero's Friend: Running the Kingdom Behind the Scenes (Manga) Vol. 3

LIFE HACKS

The battle is won, but the war is only just beginning. Now having changed out of his armor and into a suit, Lord Werner--a Japanese office worker reincarnated into the world of a classic RPG--faces a completely different ordeal as he attempts to plan the kingdom's long-term survival. It's time for him to use all his experience as a fan of classic role-playing games to organize a military defense--which might as well be cheating!