Is It Wrong to Pick Up Girls in A Dungeon?

Dungeon ni Deai wo Motomeru no wa Machigatteiru Darou ka? (ワンパンマン, lit. "Is It Wrong to Pick Up Girls in A Dungeon?") is a Light Novel series written by Fujino Omori, with illustrations by Suzuhito Yasuda. It published by GA Bunko, an imprint SB Creative. The novels have received a manga and 4-koma adaptation serialized in the Gangan Joker and Gangan Online magazines respectively in 2013, which have, in total, been compiled into five volumes. During the 2015 Spring Season the series received an anime adaptation, spanning thirteen episodes. An OVA has also been announced. The series is often shorted to DanMachi (ダンまち); the "Dan" from Dan-jon/Dungeon (ダンジョン) and the "Machi" from Machi-gatteiru (間違っている).

Plot
Commonly known as the "Dungeon," the city of Orario possesses a huge labyrinth in the underground. Its strange name attracts excitement, illusions of honor, and hopes of romance with a pretty girl. In this city of dreams and desires, new adventurer Bell Cranel has his fateful encounter with the tiny Goddess Hestia.

Thus begins the story of a boy striving to become the best adventurer and a lonely goddess searching for followers both working together to fulfill their goals. (Via MyAnimeList.net)

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 * Is It Wrong to Try to Pick Up Girls in a Dungeon?
 * Is It Wrong to Try to Pick Up Girls in a Dungeon?
 * Is It Wrong to Try to Pick Up Girls in a Dungeon?