6.86 Average Score
295 Favorites
Romaji
The Testament of Sister New Devil
Native
新妹魔王の契約者〈テスタメント〉
Synonyms
Shinmai Maou no Keiyakusha
Format
TV
Studios
Production IMS
Episodes
12
Episodes (Dub)
12
Episodes Duration
23 min. per ep.
Status
Finished Airing
Premiered
Winter 2015
Genres
Action, Ecchi, Fantasy, Romance, Harem, Demons
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Description

Running into your new stepsister in the bathroom is not the best way to make a good first impression, which Basara Toujou learns the hard way. When his father suddenly brings home two beautiful girls and introduces them as his new siblings, he has no choice but to accept into his family the Naruse sisters: busty redhead Mio and petite silver-haired Maria.

But when these seemingly normal girls reveal themselves as demons—Mio the former Demon Lord's only daughter and Maria her trusted succubus servant—Basara is forced to reveal himself as a former member of a clan of "Heroes," sworn enemies of the demons. However, having begun to care for his new sisters, Basara instead decides to protect them with his powers and forms a master-servant contract with Mio to keep watch over her.

With the Heroes observing his every move and the constant threat of hostile demons, Basara has to do the impossible to protect his new family members. Moreover, the protector himself is hiding his own dark secret that still haunts him to this day...

[Written by MAL Rewrite]

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585 users
Plan to Watch
549 users
Completed
1154 users
On-Hold
75 users
Dropped
68 users