Leaving the village of Rabbi in the care of his advisors, the Demon Lord heads north with the adventurers Yukikaze and Mikan in search of an anti-magic solution. However, he enters the Bastille Dungeon during his search to find an unimaginable sight. At the same time, the village development steadily becomes an international success with the help of the influential Madame. Get ready for the third volume of the mistaken-identity fantasy, where a game developer plays a Demon Lord of his own creation!