The Testament of Sister New Devil

R+

TV 23m

Watch now

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...

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Overview:

japanese: 新妹魔王の契約者〈テスタメント〉

Synonyms: Shinmai Maou no Keiyakusha

Aired: Jan 8, 2015 to Mar 26, 2015

Premiered: Winter 2015

Duration: 23m

Status: Finished Airing

MAL Score: 6.85

Genres: Action Demons Ecchi Fantasy Romance Harem

Studios: Production IMS

Producers: Kadokawa Shoten , AT-X , Nippon Columbia , Kadokawa Pictures Japan , KlockWorx , Mobcast , Production IMS , Funimation , Crunchyroll

HiAnime is a site to watch online anime like The Testament of Sister New Devil online, or you can even watch The Testament of Sister New Devil in HD quality