小野大輔
In June 2010, Kadokawa announced that an anime television adaption was being developed. Produced by Gainax under the direction of Yutaka Uemura, The series aired its broadcast run on TV Tokyo from July 16, 2011 to October 1, 2011. The series is also streamed with English subtitles by the media websites Crunchyroll and NicoNico. The opening theme is "Cras numquam scire" (To Never Know Tomorrow) by Yucca (feat. Daisuke Ono) while the ending theme is "yes, prisoner" by maRIONnetTe. Funimation has licensed the series for North America and releaseed the series on subtitled DVD on February 14, 2017.