After he and his entire class are summoned to another world, Hajime Nagumo finds himself extremely underpowered and at the mercy of the Labyrinth.

Hajime's classmates struggle with the aftermath of Hajime's fall. Hajime descends even further into the Labyrinth, where he makes a fateful encounter.

Hajime and Yue descend deeper into the labyrinth, discovering one another's stories along the way.

Hajime and Yue encounter a powerful foe in the deepest depths of the Labyrinth. Will they be able to defeat it and find a way out?

After finally making it back to the surface, Hajime and Yue encounter a rabbit girl who claims she's been "waiting for them" -- and needs their help.

Hajime, Yue, and Shea forge onwards, their next labyrinth in sight. However, the Liberator of this Labyrinth is quite the unusual character.

Hajime and the gang reluctantly accept a quest. Their journey north to the town of Ur leads to an unexpected reunion with their teacher, Aiko.

Hajime's quest leads him and his classmates into the mountains, where they come across their quarry -- and the huge black dragon attacking him!

With an army of monsters approaching the town of Ur, Hajime sets a plan into motion to protect the citizens and exalt Aiko as the Goddess of Plenty.

After returning to Fuhren, Hajime heads off on a date with Shea, which comes to a sudden close when they stumble on a kidnapped merfolk girl.

Hajime's party makes their way back to a familiar location. Deep in the Labyrinth, a new foe threatens the lives of his classmates.

When Hajime's classmates are threatened by a demon mage to "join or die", it's up to him to rescue them -- whether they like his methods or not.