Storyline

In 2012, the world allegedly comes to an end at the hands of a "human-made" virus, ravaging the global populace and leaving only children under the age of thirteen untouched. It is at this time that vampires emerge from the recesses of the earth, likely followed by age-old horrors of the dark thought only to be myth. The vampires sweep the earth and claim it in a single violent stroke, subjugating the remnants of humanity and leading them beneath the surface to safety. This "protection" comes at the price of donating blood to their captors.

Four years later the virus passes and humans resurface, although some have lived in the out side world. The Japanesse Demon army begans to build it's army much stronger. Many of them doing experiments to find a way to challange the vampires strenght a lot of this done at the Second Shibuya High School.  This is school is the starting grounds of the Japanesse Imperial Demon Army. This is where many finds themself today.