The Testament of Sister New Devil BURST is a tV series anime that premiered in fall 2015, produced by Production IMS.

About the production: the story comes from a light novel, there are 10 episodes of about 23 minutes and its current status is "finished".

Its main genres are action, ecchi, fantasy and romance, with themes such as Demons, Nudity, Super Power and Female Harem.

On AniList, The Testament of Sister New Devil BURST has an average score of 64%, an average score, and appears on 91,134 users' lists.

The franchise continues in or follows from: Shinmai Maou no Testament: Toujou Basara no Hard Sweet na Nichijou and Shinmai Maou no Testament: BURST - Toujou Basara no Shigoku Heiwa na Nichijou.

After two demon girls, Maria the succubus and Mio the demoness, force Basara into a contract that makes him their master, the trio form a complicated master-servant relationship. Basara is the last descendant of a demon-fighting hero clan, but as master of two demon girls, he finds himself defending them instead of fighting them. (Source: Funimation)

Official synopsis from AniList.