Dungeon ni Deai wo Motomeru no wa Machigatteiru Darou ka: Familia Myth - Season 1

Bell goes to deep into a dungeon and finds himself needing to be saved by a higher level adventuress. 

Though Bell's patron goddess Hestia is jealous of his infatuation with swordswoman Aiz, she asks the goddess Hephaistos to make Bell a sword.

A creature escapes during the Monster Phillia and Bell and Hestia is ambushed in town. Though things seem hopeless, Bell vows to make a fight of it.

Bells special skill allows him to level up quickly, Eina takes him shopping for equipment suitable for him after checking his status.

Hestia is overjoyed to be going on what she thinks is a date with Bell, only to have it spoiled. Meanwhile, Lili's motivations are revealed.

Eina learns the Soma Familia's true purpose, which increase her suspicions of Lili. Lili goads Bell into venturing into the 10th level of the dungeon.

Hestia reluctantly agrees to let a transformed Lili join the expedition even though she is jealous of her. Eina then sets up a meeting with Aiz for Bell.

Bell's training with  Aiz ends before the Loki Familia goes on a quest. He becomes determined to go on a adventure in the dungeon in order to level up.

Bell's leveling up means that he has acquired a new skill and a title. He also must form a party to explore the dungeons middle levels.

With Hestia waiting, Bell and his party battle monsters on the middle levels of the dungeon. Hermes and Asfi discuss Bell's reputation with his fellow adventures.

Bell and his party are tested to the limits while trying to reach the safe zone, meanwhile the Hermes Familia rescue the Takemikazuchi party and follow Bell and his group.

The united parties explore the safe zone of the 18th floor including the adventurers town. Hermes tells Bell he needs to talk to him in private which sets him up to get caught peeking unintentionally at the women in the water pools.

A massive floor boss crashes down into the safe zone. Bell and his group of adventurers fight it while Asfi gathers the group up. They find that the escape route has been cut off.