Monsters. Fundamentally different from humans and beasts, these loathsome creatures make their homes underground. To Aiz, such beings only exist to be destroyed, so when they suddenly appear in Orario, she doesn’t hesitate to leap into action. As chaos erupts in the streets, Loki Familia rises to quell the onslaught, only to find Bell Cranell standing in its way. Bell seeks to protect the rampaging monster behind him, but in order to do so, he’ll have to go up against Aiz herself...

Loki Familia has breached the halls of Knossos, a man-made underground labyrinth with nasty surprises lurking around every corner. Divided into several groups, the members have their hands full just trying to survive! Bloodied and battered, will Gareth, Finn, and the others be able to escape this living nightmare, or will Knossos be their final resting place?

Loki Familia's supposed beach vacation has taken a turn toward catastrophe with the appearance of demons from Tiona and Tione's past-the Kali Familia. The unexpected arrival of the Amazonians unhinges Tione, and both sisters must confront memories best forgotten. Before it becomes clear exactly why Kali and her brood have dropped in, tragedy strikes-Lefiya is kidnapped, and Tiona and Tione vanish in the uproar. The goddess Loki's wrath is a thing of horrors, but the Amazonian sisters' ire may just prove worse...

In search of the key to Knossos, Bete’s leaving no stone unturned! But unfortunately for him, Lena seems to have the information he needs, and her price is one date! Though he reluctantly agrees, they don’t get far before they’re set upon by Valletta and her horde of assassins, and she’s taking no prisoners! Outnumbered and ill-prepared, will Bete be able to protect his unlikely companion?

After returning from an arduous but successful expedition deep into the Dungeon, Loki Familia gets a rare chance to rest their weary bones. Ainz is troubled about a certain rabbit-like boy, but that won't stop Lefiya and the others from dragging her along on an all-girls shopping trip! What's more, the Monsterphilia is fast approaching, promising a day filled with exciting attractions and events. But the gods and mortals of Orario may get more entertainment than they bargained for when all Dungeon breaks loose!

The Dungeon's Under Resort is supposed to be safe, yet when Lefiya ends up lost in its forest with Bell Cranell, it's just her luck that peril would emerge from the foliage. The dangers plaguing Loki Familia have followed them even here, and it's up to Lefiya to make sure they both make it out alive! Despite her familia's exhaustion, Loki has plans for them immediately upon their return and sets to work preparing yet another excursion. This trip may look like a beach vacation, but even in paradise, monsters lurk beneath the waves...

Aiz has finally done it! After showing her resolve by defeating the Black Skeleton King, Udaeus, she has reached Level Six at long last! But instead of being satisfied, why is she rushing back to the Dungeon?! With no idea as to Aiz's whereabouts, Loki Familia is determined to take action. But there are too few of them available to form a search party, forcing Loki to accept the help of another familia...