The light novel series began in 2012 and has nine volumes out so far in Japan.
Peppermint Anime brought out in full the first season of Testament of Sister New Devil last fall and now they’re finishing up soon with the second season which goes by Burst.
Madman Entertainment has the rights to this series in Australia; no North American pickup has been made at this point.
It’ll be in its original Japanese language with German subtitles as well as a newly produced German language dub.
…
The Testament of Sister New Devil - Clip #13 (dt.)