Dungeon ni Deai o Motomeru no wa Machigatte Iru Darou ka

Is it wrong to face the perils of Dungeon alone, in a single-member guild blessed by a failed goddess? Maybe. Is it wrong to dream of playing hero to hapless maidens in Dungeon? Maybe not. After one misguided adventure, Bell quickly discovers that anything can happen in the labyrinth-even chance encounters with beautiful women. Only problem? He’s the one who winds up the damsel in distress! — Description from novelcodex.org