Into the Deepest, Most Unknowable Dungeon Vol. 11

ATTACK THE HEAD!
Jean and the girls stumble upon the waterlogged remains of an ancient underground civilization…and encounter the many-headed hydra! But these are no mere beasts—more heads means more brains, and soon it is siege tactics and war between humans and cunning, nigh unkillable, monsters! No magic! No cheats! Get balls deep in this isekai adventure, where intelligence and instinct collide!
Series Overview: 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!
From the creator of Creature Girls: A Hands-On Field Journal in Another World. GHOST SHIP Seven Seas Entertainment Spring 2025 – November 2024 Page 1328