Oshirase : Saikyo Mao Ha Dan John Keiei De Arakasegi Wo Hajimemasu! (HJ Bunko) [Light Novel]

[Machine Translation] The long war between humans and demons has finally come to an end. However, in order to solve the problems of the demons who have no place to stay even though they have moved to the human world, the almighty demon king Regnand comes up with a genius idea. He holds a gambling event called "Dungeon Duel," in which demons and humans compete for skill and brains in a labyrinth, making a spectacle out of it and making a lot of money. The heroes try to defeat him, the last boss of the labyrinth, but they all end up in a dungeon designed by Regnando and become the stuff of wild money-making. A dungeon management fantasy by a demon king and his servants, beautiful girls!

人間と魔物の長い戦いがようやく終結した世界。しかし、せっかく人間界に移住しても居場所のない魔物たちの悩みを解決するため、全能なる魔王レグナンドは天才的なアイデアを思いつく。迷宮を舞台に、魔物と人間とが技と頭脳を競うギャンブルイベント「ダンジョンデュエル」を開催し、見世物にして大金を稼ぐレグナンド。迷宮のラスボスである彼を倒そうと勇者たちが挑戦するが、みんなレグナンド設計のダンジョンで荒稼ぎのネタにされていく。魔王と下僕の美少女たちによる、ダンジョン経営ファンタジー!!