One letter from a city girl can cause untold chaos! Bell has been meeting up with Syr as promised, which of course turns into its own kind of commotion as the workers at the Mistress of Fertility, the Sword Princess, and even Freya Familia all get involved. While everyone is preoccupied with these hijinks, a new shadow approaches the city...

Hestia Familia and Loki Familia. One is trying to save the Xenos, intelligent monsters whose origins are yet unknown. The other sees them as nothing more than typical monsters--enemies to be exterminated. As Bell stands before his idol, Aiz Wallenstein, he knows a clash of wills is inevitable...

Syr confessed her feelings to Bell at the Goddess Festival and received his answer. It wasn't the one she wanted but the Goddess of Beauty isn't about to let her mark escape so easily. Freya appears before Hestia with one request-hand over Bell.

Stuck on the 27th floor with no way out, Lilly and the rest of the party are forced to endure an 'adventure' that has been thrust upon them in the sudden absence of their leader! Meanwhile, Bell and Lyu have found themselves on the 37th floor after becoming separated from the others. Alone, without support, and unsure of what to do, will they be able to make it out alive of the deepest floor Bell has ever set foot in?

Intelligent monsters, the Evils, the Hestia Familia and Aiz's Loki Familia. Head of the latter, Finn alone is calm amid the chaos. In this clash of wills, what path will Finn take? Unwilling to abandon her anti-monster philosophy, Aiz moves to stop Bell, but she finds her path blocked... The battle with the mysterious gale swordsman begins!

After being rescued from some of Ishtar Familia's fiercest female warriors in the Red Light District, Bell can't help letting his thoughts drift to Haruhime, the woman who helped him escape. He wants nothing more than to return the favor and save her from her painful life of servitude, but after seeing Ishtar Familia's strength firsthand, he'll need to put his plan into motion quickly...

Loki Familia is in dire straits within the artificial Dungeon, Knossos. Separated and forced to face the Evils' cursed weapons, Aiz's wind guides them through the crisis. The wounded adventurers attempt to escape, but several of their number never make it back to the surface...

Haruhime has been captured once again, and Bell's efforts to save her ended in a crushing defeat at the hands of Ishtar Familia. When faced with Ishtar's schemes and the true nature of the "ritual" they're planning, Bell realizes just how powerless he really is. Wiping away tears, he stands back up, determined to stop the ritual and bring Haruhime back-but this time, his destination is Ishtar Familia's home base, the Belit Babili!

As Lena suffers Valleta's wrath, Bete's scars begin to ache. In a fit of rage, he charges into enemy territory alone, invoking Hati, the powerful magic that forces him to relive his painful past. It burns all, leaving even his heart reduced to ash. With Bete's fury awakened, his enemies shall know no mercy...

After Mikoto ventures into Orario's pleasure quarter on a lead to find her long-lost friend, Bell, Lily, and Welf decide to join the search! Unfortunately, Bell's hardly comfortable in such an unfamiliar environment, and after he gets separated from the group, he soon finds himself in a part of Orario he never knew existed. There, he spies a beautiful girl with fox ears and a tail, but little does he know, she's exactly who Mikoto's been looking for...

Aiz and Bell's secret training pays off...!! As Loki Familia finishes preparations for their expedition to the 59th Floor, they're not the only group headed back to the Dungeon. But it's like Dejavu when Aiz hears of a white-haired adventurer and a Minotaur, and she bolts away from her Familia to check on Bell!

'Hestia, I challenge you to a War Game!' 'What's with you, Apollo?' A War Game--an all-out proxy war between gods, and the winner takes all. But what is it that Apollo wants? Hestia's beloved Bell Cranell, of course! With a week to go until the Game, things are bleak enough, but then Lilly is kidnapped by the Soma Familia. The outlook isn't good , but Bell has made many friends through his adventures, and they won't stand idly by. The familia myth continues!

Welcome to Ikebukuro, where Tokyo's wildest characters gather!! Meet an ordinary boy who daydreams about the extraordinary. A naive stalker girl. The strongest man in Ikebukuro. A shut-in doctor with questionable credentials. A hedonistic informant...and the 'headless rider' astride a pitch-black motorcycle!? As their paths cross, this eccentric cast weaves a twisted, cracked love story...

Loki Familia has reached the unknown 59th Floor, and it's not quite what they expected. A corrupted spirit, composed of other spirits devoured by monsters, lies before them, and for some reason, it's calling Aiz "Aria"...

A year and a half after the fall of the Dollars, the trio from Raira Academy pay a visit to Anri and her new antique shop in Ikebukuro. Shortly after a certain someone pressures her to sell them Saika, her business is ransacked. But when Celty gets a tip about Anri and rushes over to her shop, she comes face to face with Akabayashi and others involved with the blade. What further secrets does this cursed weapon keep...?

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.

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!

Bell, along with his adventuring party of Welf the swordsmith and Lilly the supporter, has made it into the middle floors of the Dungeon, but the schemes of another party have stranded them there! Hestia's going to need to send help, but will the rescuers arrive in time to save Bell and his friends from the monster that's got them cornered? The familia myth of the boy and the goddess continues!

Monsters. Fundamentally different from humans and beasts, these loathsome creatures make their homes underground. To Aiz, such beings exist only 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 their 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...

Ikebukuro has a slashing problem.Ikebukuro, Tokyo. A place where the clumsy and inept at love gather. A high school girl worried about her status. A third-rate magazine reporter covering the Ikebukuro beat. A teacher suspected of sexual harassment. A thug wearing a yellow bandanna, who is said to be the toughest around. A young man who deals in all manner of sensitive information. And a headless rider on a coal-black motorcycle. As these individuals and more are drawn into a whirl of unlucky incidents, Ikebukuro itself will begin to crumble...!

Overcoming the countless dangers and perils of the Dungeon, Bell and his friends have finally made it back to the surface. After all they've achieved, there's no doubt that all of them have grown stronger and wiser. With the clamor of battle behind them, everyone finds the chance to think back to where it all started as a brief peace visits the land where heroes are born...

MORE LEVELS, MORE PROBLEMS!Following his defeat of the Minotaur, Bell has reached Level Two--and is the new record holder for the fastest to do so. Suddenly everyone in Orario wants to form a party with him and go adventuring! But with sudden popularity comes many a complication. How will Bell and Hestia know whom to trust? The Familia myth--written by the goddess and lived by the boy--continues!

Bad news arrives in the rest-stop town of Rivira on the 18th floor: someone has been murdered. The prime suspect is Gale Wind, the blacklisted fugitive with a bounty on her head. Bell and his companions can't believe their ears. But as they are preparing to pursue her in order to clear her from suspicion, Cassandra has a terrible precognitive dream. It contains seventeen prophecies-and if it comes true, the people she cares for most are fated to die. Overcome with despair, the prophetess of tragedy begins a solitary battle against ruin. Meanwhile, Bell searches for the truth about Lyu. Yet when he finally encounters the elf, whose heart burns with the black flames of vengeance, unprecedented calamity lets out its newborn cry!

Lyu Leon, Gale Wind, has realized she's the target of an assassination plot, and attempts to leave The Benevolent Mistress behind. But her attempt to protect the tavern only brings her friend into the fray! What will become of these rogue adventurers in this conclusion to the Familia Chronicle!?

Ikebukuro has been plunged into full-on chaos, and the fates of everyone involved with the Headless Rider will soon be decided in the explosive final volume of Durarara!!