Reincarnated Into a Game as the Hero's Friend: Running the Kingdom Behind the Scenes Novel Volume 3 was written by Yuki Suzuki and illustrated by Sanshouuo.

The Hero Mazel has finally set out on his grand adventure to defeat the Demon Lord, leaving his best friend Lord Werner—a Japanese office worker reincarnated into the world of a classic RPG—to hold down the fort. But just when Werner resigns himself to a mountain of paperwork, he's called into a battle of his own! Can he rally his troops in time to save both the princess and Mazel's family?