Type: OVA Episodes: 2 Status: Finished Airing Aired: Sep 24, 2010 to Dec 24, 2010 Producers: Suzuki Mirano Genres: Hentai Duration: 30 min. per episode Rating: Rx - Hentai Four years have passed since the initial outbreak of the Unknown virus epidemic, and the terrifying plague which depopulated the Tohoku region of Japan has been reduced to a mere memory, thanks to drastic quarantine measures coupled with an effective vaccine. [](http://imgtrex.com/bhy9ag094mwb/1.jpg) [](http://bokimage.com/img-54d88283a24e0.html)