Gakuto Mikumo

Yahiro and Iroha finally arrive in Kyoto, only to find the head of Galerie Berith waiting for them. The man has conspired to take the Relict Regalia from Karura Myoujiin, and prepares to invade the Imperial compound. To rescue Karura, Yahiro and Iroha infiltrate the compound, and in the process come to know the truth about the dragon mediums and the reality of their world. At the same time, Sui Narusawa finally opens her eyes.

Yahiro and the others journey to Kyoto aboard Galerie Berith's armored train. There, they hope to discover the truth about Japanese people having transformed into moujuu. The train screeches to a halt when soldiers stationed at Nagoya demand a toll-the Regalia: a crimson gem that is...fusing with Ayaho?! There's no way Yahiro or Iroha will hand her over, but how will they keep everyone else safe and escape a barrage of attacks from soldiers and moujuu?

Iroha’s channel surpasses a million views overnight when a sleuth streamer called Yamadou exposes her as a dragon medium on his channel! Now it’s like the whole world is out to get her! Before Yahiro and the Galerie can do anything to retaliate, the Guild detains Yahiro...as a suspect for serial murders?! With Yahiro out of the way, a foe with an old grudge launches an attack on the Galerie’s Japanese branch. Iroha and her siblings are more vulnerable than ever!

Bound by his contract with Galerie Berith to hunt dragons, Yahiro heads to the Fortress City of Yokohama, which is under the control of the Guild—a neutral organization that acts as an intermediary between private military companies. There, he finds the swamp dragon medium Nina Himekawa and her Lazarus, Hisaki Minato, waiting for him. Then, Waon Iroha is invited to collab with a streamer backed by a European enterprise named Gibeah. Although she is initially overjoyed at this news, things quickly become complicated when she realizes the corporation is connected to the Japanese Council for Independence, who mean to take their country back...by any means necessary.

She's a dragon. He's a dragon slayer. And in this world, the Japanese have been wiped out! That day, giant dragons appeared in the sky above Tokyo, and the collapse of the nation of Japan began. With the arrival of monsters called Moju, Japanese people went extinct, and the nation was transformed into a lawless land occupied by armed forces and criminal syndicates. Yahiro is one of the few remaining. Having gained immortality from dragon’s blood, he spends each lonely day as a "salvager" transporting artwork out of the uninhabited ruins of Tokyo...until one day, a pair of twin art dealers request that he salvage a particularly powerful and mysterious item.

To close the Keystone Gate and seal the portal to Nod, the Japanesegovernment callsfor the destruction of Itogami Island, dispatching Yukinaand Natsuki to thebottommost layer of the structure. But when the time comesfor her to pull the trigger,Yukina wavers between following her orders andsaving the island she loves. In themidst of this predicamentKojou—having regained his vampiric powers—shows up tooppose her. The story of the world’s mightiest vampire and his Watcher finally drawstoa close!

Kojou has finally defeated the Blood, but with Ren abducting Avrora andfleeing toanother world, there’s no time to celebrate. And withKojou’s vampiric powers gone,staging a rescue seems impossible...untilthe First Primogenitor, Ki Juranbarada, showsup with a striking proposal anda tempting offer—a new set of Beast Vessels. ButwhenJuranbarada’s gift transforms Kojou into a monster devoid ofreason, it’s up to Yukinaand company to find a way to save him beforeit’s too late!

With the arrival of the Primogenitors, the Electoral War for Itogami Islandplungesfurther into chaos. Shio and Yuiri head to the island intending touse TwelthPrimogenitor, Avrora, to put an end to the conflict, only to comeface to face withSecond Primogenitor, Fallgazer. While Yukina rushes to theisland to save the three,elsewhere Kojou is suddenly overcome byinexplicable hunger and thirst, which isapparently tied to the Beast Vassalsthat resonate with the Primogenitors. Just whatwill Kojou have to do toregain his strength and stop the Beast Vassals' rampage?

After quashing the rebellion in Aldegia, Koujou and his friends return toItogami islandto find that in their short absence, there has been a violentupturn in the status quo! The Gigafloat Management Corporation has beenhijacked, and war brews between thedemon clans for control of the territory. And once again, the Fourth Primogenitor hasbeen drawn into the heart of theconflict, al while the perpetrator's true intentionsremainunknown!

There's a celebration to be had in the Kingdom of Aldegia, and Princess LaFolia invites Kojou to join in the festivities. Reluctantly accompanied byKanon, he travels to the palace for the signing of a peace treaty betweenAldegia and the Warlord's Empire. But suddenly, the palace is attacked by amysterious monster, and a large-scale terrorist plot is unveiled! And as luckwould have it, Kojou's caught right in the middle!

It's a new semester at Saikai Academy and Kojou just barely made the cut! Looks like world's mightiest vampire--and lord of the fourth Dominion--won't bein the same class as his little sister after all. But that'll be the least ofhis worries when he finds out that the Japanese government is trying place thefourth Dominion under the control of someone else! Kojou's going to need helpfrom alies, old & new, to defend his title-and Yukina's job!

Following the most intense battle of his life, a young man washes up on astrange shore. He is found by a swordswoman named Shizuka Kosugaya and informedthat his name is Kojou Akatsuki, and that he is the fourth vampire primogenitor. In the days spent healing his mind and body, the two encounter a third person: Abeautiful girl wielding a silver spear that calls Kojou..." Senpai."

Velesh Aradahl, chairman of the Imperial Assembly of the Warlord's Empire,has made his move. With his vast combat experience and boundless knowledge ofprimogenitors past, he's shaping up to be one of Kojou's toughest opponents yet! The clock is ticking. Can Kojou defeat his latest adversary before ItogamiIsland ceases to exist in only twelve short hours?!

Following the events of the Tartarus incident, repairsbegins on Itogami island, and local idol Asagi has been chosen as the symbol ofthe reconstruction effort. Or so it would appear... It isn't long before Kojouand Yukina have to rush to her rescue, but...what's going on with Yukina'sbody?!

Air and sea transportation to Itogami Islandhave been cut off entirely. Meanwhile, key personnel of the Gigafloat ManagementCorporation are being assassinated one after another. The mastermind behind thisseries of incidents is the self-proclaimed Demon Sanctuary Destruction group,Tartarus Lapus. Nagisa is still suffering spiritual fatigue due to the awakeningof the soul of Avrora. At this time, she meets a strange girl who goes by thename December. Unbeknownst to Nagisa, this girl is the leader of Tartarus Lapus,and she has a special ability capable of overwhelming even the FourthPrimogenitor!