The clock stops for no one. Promises have come undone-Aiz could not kill the monster who wept in front of her while shielding Bell. For nights on end, those tears have haunted her, obscuring her reason to fight and guiding her to face Bell for the first time since their conflict... But they aren't the only ones joining hands across familias. With the dawn of the Knossos operation upon them, the patron gods tear down their differences. The adventurers march toward their fate with the Xenos by their side. For life, for death, and for the destiny of Orario, they hold their heads high, ready for war-failing to realize that the darkest of times is yet to come...

After saving the young dragon girl Wiene, Bell's name has become synonymous with "greedy", "despicable", and "traitor." He and his familia have completely lost the trust and respect of everyone residing in Orario. There's no time for him to feel sorry himself when his newfound monstrous friends, the Xenos, need his help to get home. But now that the the greatest obstacle in their way is Loki Familia, does Bell have what it takes to raise a fist against his beloved idol, the Sword Princess Aiz Wallenstein?

The original Dungeon adventure continues! After Bell's successes on the Eighteenth Floor, he's the talk of Orario and the gossip has caught him some unwanted attention from Apollo Familia...

Having reached a new level of the Dungeon, the Colossal Tree Labyrinth, Bell meets a dragon girl named Wiene who can speak human language. Once he learns she has come under attack from humans and monsters alike, he vows to protect her. This decision brings chaos to the capital as the two navigate ruthless hunters, the irremediable strife between monsters and humans, and the plans of the Guild's true leader. The bizarre situation shakes humans, monsters, and deities to the core in volume nine!

And so the boy begins to run again.Bell has grown through combat with his greatest rival. A rank up, a denatus, a new nickname...as he draws attention from the people and deities of Orario, the young adventurer receives a letter."A mission...an expedition?" Bell has reached a higher level, and he must therefore take on an even more challenging adventure. The order from the Guild leads him toward a new stage.And so, a faction alliance sets out for the Dungeon. Alongside his companions, Bell faces new floors, new monsters, and new unknowns.

The prophecy of despair continues... When an unprecedented calamity on the twenty-seventh floor leaves Bell and Lyu stranded, Bell's party needs to keep fighting without him. With their route to the surface lost and Hestia Familia's captain missing in action, Lilly must take command to ensure they all make it home alive. Ten floors below, Bell and Lyu are injured and alone, forced to struggle against the harshest challenge the Dungeon has to offer, which puts their very lives on the line. Bell has never been this deep down before nor completely unprepared, meaning Lyu's knowledge and strength are essential to their survival. However, the forlorn elf finds herself standing on the border between life and death, bound by her past, remembering once again exactly how her devotion to justice died so many years ago...

Having triumphed in the War Game, Lilly, Welf, and Mikoto have forged new bonds with each other and with Bell, and the new-and-improved Hestia Familia is feeling distinctly more familial. But when Bell has to venture into the pleasure quarter of Orario to come to Mikoto's aid, he's soon tangled up in more intrigue than he bargained for. Ishtar Familia owns the night here, and none of Bell's experience can prepare him for their courtesan wiles!