現地の少年が、現代日本からの召喚者と 難易度MAXな迷宮攻略に挑む! 神が創りし迷宮は、銃と剣と魔法で戦うRPG感覚!? 異世界からの召喚者たちも参戦して、命がけの攻略スタート! 現地生まれの狩人シュンによる、神様も驚く超絶廃プレイが始まる!! そして現代日本から召喚された双子の少女・ユアとユナと出会い……。 A boy born from this world alongside the summoners from Japan… They will challenge the max-difficulty dungeon! God created a labyrinth, which people challenge with guns, swords, and magic in an RPG-like world. Summoners from many other worlds particpate in this massave battle! The locally born hunter Shun quickly rises to prominence as he plays the game!! Then, he meets the twins Yua and Yuna, who have been summoned from Japan…