It's all about vampire hunting versus man hunting in the series. 
Akira's brother, Atsushi, was found missing for 2 years. And recently a mysterious woman appeared and told him that she can bring him to Higanjima (an island's name) where she saw Atsushi. But she also asked that he should brings a few more friends there...

A short net anime adaptation of the Higanjima manga.

In Higanjima, the battle for life and death goes on! 
Who will survive and be the last winner? 
Will it be the Humans lead by Akira? or The Vampires lead by Miyabi? 
Using the last time limit of 47 days set by Miyabi, 
The humans stand and fight for the last survival while trying to prevent Miyabi's plan to make the main land: Japan becomes the 2nd Higanjima!

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