Into the Deepest, Most Unknowable Dungeon Vol. 15

By KAKERU

In this Mature-rated take on the popular isekai fantasy genre, a man journeys into the darkest, squishiest depths of a goblin-filled dungeon in another world

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.

• Format: Paperback
• Language: English
• ISBN: B0GVDC4894
• ISBN13: 9798895616598
• Release Date: December 2026
• Publisher: Ghost Ship
• Length: 178 Pages
• Weight: 0.81 lbs.