Is It Wrong to Try to Pick Up Girls in a Dungeon? Novel Volume 12 is written by Fujino Omori with illustrations by Suzuhito Yasuda.

And so the boy begins to run again. Bell has grown through combat with his greatest rival. A rank up, a denatus, a new nickname...as he draws attention from the people and deities of Orario, the young adventurer receives a letter. "A mission...an expedition?"

Bell has reached a higher level, and he must therefore take on an even more challenging adventure. The order from the Guild leads him toward a new stage. And so, a faction alliance sets out for the Dungeon. Alongside his companions, Bell faces new floors, new monsters, and new unknowns.