Reincarnated Into a Game as the Hero's Friend: Running the Kingdom Behind the Scenes Novel Volume 1 was written by Yuki Suzuki and illustrated by Sanshouuo.

Someday, the hero Mazel will battle the Demon Lord with the fate of the realm at stake. But until that day…he better be carrying plenty of potions! While the hero is off saving the kingdom, it’s up to Lord Werner—a Japanese office worker reincarnated into the world of a classic RPG—to keep the rest of the world from becoming collateral damage. There’s no hero, luminary, or warrior of light who doesn’t need a friend like Werner! But can he truly defy the flames of fate and change the bittersweet ending of the game?