Seven Seas Entertainment has announced that the company has acquired the North American license for the Testament of Sister New Devil manga. The company says it intends to release the first volume of the series in February 2016.
The manga is adapted from the light novels of the same name that come from writer Tetsuo Uesu. The light novel series began in 2012 and as of this writing, has seven volumes out in Japan. The property has two manga series out there and Seven Seas has picked up the rights to the main one by Kashiwa Miyako, which began in Spring 2013 and has two volumes released to date as it’s being serialized in Shonen Ace.
Source: The Fandom Post