Yakusai no Moushigo to Seijo no Meikyuu

In a world shaped like an RPG, where a labyrinth created by God draws challengers armed with guns, swords, and magic, a massive battle unfolds. Summoners from countless other worlds are thrown into the fray, but among them stands a boy native to this realm. Alongside the heroes summoned from Japan, Shun, a locally born hunter, rapidly climbs the ranks and makes a name for himself. His rise to prominence takes a new turn when he crosses paths with Yua and Yuna—twin sisters who have been summoned from Japan—as they all set their sights on conquering the ultimate, maximum-difficulty dungeon.