Tatsuo Miura (Okusama wa Mahou Shoujo episode director) is helming the anime, with Takeshi Miyamoto (Namu Amida Butsu!: Rendai Utena script) in charge of series composition. Kenji Tanabe (Caligula) is designing the characters. Shin-Ei Animation and SynergySP are co-producing the series.
Y.A launched the action fantasy novel on the Shousetsuka ni Narou website in June 2013 and ended it on March 2017. Kadokawa began publishing the series with illustrations by Choko Fuji (R.O.D Rehabilitation) in April 2014. The 17th volumes will go on sale on July 25. The light novel has a cumulative 1.8 million copies of its volumes in print.