Cast: OOMORI Fujino

The huge labyrinth city, Orario, is the gateway to the huge underground maze commonly known as the “Dungeon”. Its strange name causes excitement, a place to gain honor, and maybe even a romance with a pretty girl. A place where people hold their breath, hoping to gain all they wish for, a place where a solitary young man meets a little "god". "Alright, Bell-kun, follow me! It's time for the "Familiar" initiation rite to happen!" "Yes! I'm going to get stronger!" The fated meeting of a boy who wants to become an adventurer, and the failed god who doesn't even have a single follower. This boy's journey as written by the goddess, "Family's Legend" (Familiar's Myth).

Adventurers dive into the dangerous dungeon with the help of the granted by transcendental existences called Gods. This is the story that covers the hilarious daily life of such Gods and Goddesses and their , who are forced to run around on their whims.

This is a side story adaptation of Dungeon ni Deai o Motomeru no wa Machigatte Iru Darou ka (LN). It covers the story of one of the strongest 1st class adventurer Ais Wallenstein and her desire to reach even greater heights with her friends in .

Only "heroes" can save a captive princess. "Danmachi" has restarted.
A fox person, Haruhime, is trapped in the "red light district" of the labyrinth city of Orario. Bell's fierce battle begins to save her!

Bell Cranel is just trying to find his way in the world. Of course, in his case, the “world” is an enormous dungeon filled with monsters below a city run by gods and goddesses with way too much time on their hands. He’s got big dreams but not much more when a roll on the random encounter die brings him face-to-face with the girl of his dreams—but what’s an amateur adventurer got to offer a brilliant swordswoman? And what if the lonely goddess who sponsors his solo adventuring gets jealous?