is a series of Japanese light novels written by Shiden Kanzaki and illustrated by Saki Ukai. They were published under the Dengeki Bunko seal of ASCII Media Works. The series began to be published on July 10, 2011 and 7 volumes have been published in April 2014. A manga series began serialization on August 27, 2012 in the ASCII Media Works Dengeki Maoh. An adaptation to the anime by Kinema Citrus and Orange was announced at the 2013 Dengeki Bunko Fall Festival on October 6, 2013 and aired from April 8, 2014 to July 1, 2014.