Into The Deepest, Most Unknowable Dungeon

there is one place that has withstood attempts by every army to conquer it—the city-sized labyrinth known as the deepest, most unknowable dungeon. but now, after dying on earth as a young temp worker, jean is reborn into the world with a fascination for its most infamous dungeon. with the right training and the most carefully chosen set of lustful comrades-in-arms, he may have the chance to accomplish the impossible and become a legend in a new fantasy world!