The Testament of Sister New Devil

Shinmai Maou no Testament

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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...

User Rating: 4.62 ( 6 votes)


English: The Testament of Sister New Devil
Japanese: 新妹魔王の契約者〈テスタメント〉
Type: TV
Episodes: 12
Status: Finished Airing
Aired: Jan 8, 2015 to Mar 26, 2015
Premiered: Winter 2015
Broadcast: Thursdays at 02:00 (JST)
Producers: Kadokawa Shoten, AT-X, Nippon Columbia, Kadokawa Pictures Japan, KlockWorx, Mobcast
Licensors: Funimation, Crunchyroll
Studios: Production IMS
Source: Light novel
Genres: Action, Ecchi, Fantasy, Romance, Harem, Demons
Duration: 23 min per ep
Rating: R+ – Mild Nudity
Resolution: 720p
Type: BD, Eng Sub, Dual Audio


Hisashi Saitou – Director
Tsuyoshi Takahashi – Sound Director
Takashi Andou – Episode Director
Takao Yoshioka – Script, Series Composition
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Theme Songs

OP1: “Blade of Hope” by sweet ARMS
ED1: “Still Sis” by Kaori Sadohara

Episode List

01: The Day I Got a Little Sister
02: First Contract Between Servant And Master
03: Reunion and a Gap in Trust
04: When Sadness Reaches Zero
05: A Little Sister’s Morning Demon Lording
06: Bearing Growing Emotions
07: The Depths of Love and Hatred
08: Erotic Succubus Out of Control
09: Merits and Demerits of Master and Servant
10: Plaintive Betrayal
11: Epsionage… What Lies After
12: For This Night, This Moment



Just imagine Highschool DxD in worse… yes that’s possible!


Uses titties to distract you from the lack of plot and succeeds.


more hentai


High School DxD with Incest. But they’re step-siblings so it’s okaaay???


Говно лютое, но тянки просто класс


A poor man’s Highschool DXD (from what I’ve seen of HSDXD). Enjoyable but unremarkable and lots, and lots, and LOTS of boobs.


Battle between demons and heroes, what else can I say?


    Demon Alpha

    “When do you think people die? When they are shot through the heart by the bullet of a pistol? No. When they are ravaged by an incurable disease? No. When they drink a soup made from a poisonous mushroom? No! It’s when… they are forgotten.” – Dr Hiruluk, One Piece