Dungeon ni Deai wo Motomeru no wa Machigatteiru Darou ka

Bell Cranel arrives in Orario dreaming of becoming a great adventurer, but no god will accept him into a Familia until he meets Hestia, a poor and lonely goddess with no follower of her own. Bell becomes the first member of her family and begins entering the enormous Dungeon beneath the city in search of experience, money, and a chance to grow.

During one expedition, a monster far beyond his ability nearly kills him before Ais Wallenstein, the famous Sword Princess, saves his life. His admiration for her becomes the spark behind unusually rapid growth, but Bell is still an inexperienced boy in a place that punishes every mistake. As he meets new adventurers, gods, and dangers, Hestia Familia begins to expand and Bell slowly discovers what kind of hero he wants to become.