Shinmai Maou No Keiyakusha Testament Arashi!

The Testament of Sister New Devil (Japanese: 新妹魔王の, Hepburn: Shinmai Maō no Tesutamento) is a Japanese light novel series written by Tetsuto Uesu and illustrated by Nekosuke Ōkuma. Thirteen volumes have been published by Kadokawa Shoten since 2012 under their Kadokawa Sneaker Bunko imprint. A manga adaptation has been serialized in Kadokawa Shoten's Shōnen Ace magazine since May 2013. A second manga adaptation has been serialized in Hakusensha's Young Animal Arashi magazine since February 2014. The first season of an anime television adaptation premiered on January 7, 2015. The first OVA episode was released on June 22, 2015. The second anime television season premiered on October 9, 2015. A second OVA episode was released on January 26, 2016. A third OVA episode was released on March 28, 2018.