In this manga adaptation of the farcical fantasy light novels, a hapless young lad tries to find love and fortune alike in the gigantic, monster-ridden dungeons beneath the city of Orario. The young adventurer Bell has gained a helpful ally in the form of Lilliluka - a professional supporter who's eager to aid his cause. But is Lilly everything she claims to be? And with the eyes of so many mysterious figures on Bell, does Hestia have a chance at the romance she craves?