"The fourth primogenitor" - That's the world's strongest vampire that should only exist in legends. Accompanied even by twelve Kenjuu and spreading calamity, this phantom vampire appeared in Japan.... more>>

For the observation and obliteration of this "fourth primogenitor", the government and Lion King decided to dispatch an attack mage referred as a "swords shaman". However, for some reason, the one chosen for the observation was an apprentice "swords shaman" girl, Himeragi Yukina.

Wielding the strongest anti-primogenitor spirit spear, Yukina arrived at Demon Sanctuary, "Itogami City". What was the true identity of the "fourth primogenitor", Akatsuki Kojou, she encountered over there!? <<less

A semi-serious school action story revolving around the main protagonist, Tomoharu Natsume. He is haunted by his childhood friend, Misao Minakami, who became a ghost... more>> ever since he barely survived an airplane accident three years earlier. Tomoharu Natsume takes the opportunity to live on his own when he enters high school in his new place of residence, Meiou-tei, and starts enjoying a carefree high school life. His life changed when a beautiful girl named Kurosaki Shuri appears with a trunk which she claimed Tomoharu's brother, Naotaka Natsume, asked her to deliver to him. The presence of the trunk causes the appearance of Takatsuki Kanade, a girl dressed like a shrine maiden who is after the trunk. Tomoharu is in possession of the trunk, which reveals secrets about the world they live in. <<less

That day, the appearance of a huge dragon in the skies above Tokyo was the beginning of the collapse of the nation called Japan.... more>>

The Japanese died out due to the arrival of monsters called Spirit Beasts and the 『Great Massacre』 that broke out all over the world, and the entire nation of Japan turned into a lawless zone occupied by the armies of many countries and criminal organizations.

Yahiro is one of the few Japanese survivors. Having acquired an immortal body by bathing in the blood of a dragon, he spends his lonely days as a 『retriever』 carrying out works of art from the now ruined Tokyo.

The ones to visit such Yahiro were the twin girls Giulie and Rose that called themselves art dealers. Their request for Yahiro was the recovery of a mysterious being 『Kushinada』 said to possess the ability to make the Beasts obey.

The curtain rises on the new tale of a dragon and dragon slayer, spun by a boy and girl who met in the ruined city. <<less

The young man Huey took over the old mansion of his deceased bibliomanic grand father as well as the book collection that's stored in there. But there was a condition: he also had to inherit the "Bibliotheca".... more>>

When he inspects the mansion, Huey discovers a cellar filled with piled up books. In the midst of them he comes across a black-dressed girl who's silently reading a book. She's called Dalian and has a big lock hanging in front of her. She herself is the entrance to the "Bibliotheca of Dantalian" which contains the prohibited "Phantom Books". <<less