The second season, titled The Testament of Sister New Devil BURST, premiered in October 2015.
Seven Seas Entertainment released the manga in North America, as well as the five-volume spin-off manga The Testament of Sister New Devil Storm! by Fumihiro Kiso.
A separate OVA, titled The Testament of Sister New Devil Departures, screened in Japan in 2018 and then released on home video in March 2018.
The official Twitter account for Kadokawa’s BookWalker service confirmed on March 31 that Tetsuto Uesu and illustrator Nekosuke Ōkuma’s The Testament of Sister New Devil (Shinmai Maō no Testament) light novel series has ended with the 13th volume.