He never asked for this power. Kojou Akatsuki used to be an ordinary high school boy--but that wasbefore he became the Fourth Primogenitor, the most powerful vampire of all time. Worse--he doesn't even remember how it happened. Middle schooler Yukina Himeragi, meanwhile, is the Attack Mage sent to observe him--and to stop him if he gets out of control. But was it really a good idea to send a cute girl to observe a massively powerful vampire boy whose abilities activate whenever he gets aro...

It's a battle to the death between the complete human and the strongest vampire! The Wiseman had been using Kou Amatsuka to bring about his own revival. When he attacks a ferry, can Nina Adelard obtain La Folia's cooperation in order to save them?!

THE ORDER OF THE END... After quashing the rebellion in Aldegia, Kojou and his friends return to Itogami Island to find that, during their short absence, the status quo has violently changed! The Gigafloat Management Corporation has been hijacked, and war brews among the demons for control of the territory. Once again, the Fourth Primogenitor is drawn into the heart of the conflict, all while the perpetrators’ true intentions remain unknown!

The friend of my friend is my enemy?!Akatsuki (an ordinary high school boy and incidentally the world's mightiest vampire) is finally getting used to daily life with Yukina Himeragi, the attack mage whose job it is to observe him. But his peaceful life is interrupted by the appearance of Dimitrie Vattler, an envoy from the European primogenitor known as the "Lost Warlord." Vattler's enough of a problem, but it turns out he's got his own watcher, who's friends with Yukina--and who wants Koj...

DEMON DIPLOMACY IS HARD WORK... There’s a celebration to be had in the kingdom of Aldegia, and Princess La Folia invites Kojou to join in the festivities. Reluctantly accompanied by Kanon, he travels to the royal palace for the signing of a peace treaty between Aldegia and the Warlord’s Empire. Not all are in favor of the agreement, and many hold their breath in anticipation of violent opposition. Unfortunately, these fears are realized when a large-scale terrorist plot brings a deadly mon...

Blue Elysium is a newly constructed, additional manmade isle off the Demon Sanctuary of Itogami Island: the latest, greatest resort, boasting pools, and an amusement park! Yaze schemes to invite Kojou and the others to the isle before its public opening, but somehow the "free" trip lands Kojou in a horrid part-time job.Meanwhile, Sayaka Kirasaka, Shamanic War Dancer of the Lion King Agency, visits Blue Elysium as well. Her mission: to rescue the mysterious girl Yume, held captive inside a ...

(Volume 1)Kojo Akatsuki is an ordinary high-school boy--but when that high school is in the Demon District of Itogami City, "ordinary" means something rather different. He might be a vampire, for example. He might even be the most powerful vampire of all time. Middle schooler Yukina Himeragi, meanwhile, is the attack mage sent to observe him--a cute girl sent to observe a massively powerful vampire boy whose abilities activate whenever he gets aroused, on an island city full of all manner ...

The war that changed everythingIt’s a Valentine’s Day that Kojou won’t soon forget! Amid the buzz of crushes and chocolate, dark words arrive on the wings of Glenda, the Dragon of the Swamp. Velesh Aradahl is holding Yuiri and Shio captive! And using them as collateral, he challenges Kojou to a vampire duel...At the same time, the Holy Ground Treaty Organization has deemed all of Itogami Island—altar for The Cleansing and domain of Dimitrie Vattler—a global threat. The only way to get the ...

WHEN ALLIES BECOME ENEMIES, WHO CAN YOU TRUST?New Year's Day is right around the corner on Itogami Island, and everyone is getting ready to celebrate! ...Well, almost everyone. Nagisa, off on a trip to the mainland to visit her grandmother, hasn't been returning any calls or texts. Equally troubling is Yukina's sudden and complete loss of contact with the Lion King Agency. When Kojou and Yukina's frantic attempts to find answers reveal evidence of a magical incident, Kojou decides to risk ...

NO REST FOR A PRIMOGENITOR…It’s a new term at Saikai Academy, and fortunately for Kojou, hehasn’t been held back a year! Freed from his constant work defending Itogami Island, he is ready for some peace. However, an entirelynew demon beast appears, and when Rui and Yuno are dispatched to deal with it, they are gravely wounded. Kiriha forms an unlikelyalliance with Shizuri, who is dead set on avenging her friends. Meanwhile, the Japanese government has concerns about Yukina’s ability to con...

Nagisa has collapsed! Kojou rushes to the hospital, but suddenly a mysterious girl appears, and she looks just like Avrora, the former Fourth Primogenitor. She backs Kojou into a corner--but is she the real Avrora? Through this encounter, Kojou regains his lost memories, what will he remember? Finally, Kojou's past and the secrets of the Fourth Primogenitor are revealed!

Itogami Island is abuzz with preparations for the Halloween festival, and who should be visiting for the occasion but Kojou Akatsuki's friend from elementary school, a girl named Yuuma Tokoyogi. But as Kojou reunites with his friend, his homeroom teacher, Natsuki Minamiya, goes missing! Meanwhile, a strange space-time distortion is turning the sanctuary of Itogami Island into a labyrinth from which escape is impossible. And what's behind the physical changes that come over Kojou whenever h...