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The Testament of Sister New Devil (manga)

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Alternative title:
Shinmai Maō no Testament (Japanese)
Sister Devil (Italian)
新妹魔王の契約者 (Japanese)
新妹魔王の契約者(テスタメント) (Japanese)
新妹魔王的契約者 (Chinese (Taiwan))
Themes: demons, ecchi
Plot Summary: Basara Tōjō is a first-year high school student who suddenly gains two beautiful step-sisters when his eccentric father remarries, but then his dad and his new wife embark on an overseas trip. However, the two sisters Mio and Maria Naruse are actually a novice devil and succubus. Basara almost ends up forming a dangerous servant and master contract with them, but due to an error, the contract becomes reversed, and Basara becomes the master instead.
User Ratings: 7 ratings have been given [details]
 Masterpiece: 1 vote (?:1)
 Excellent: -
 Very good: 1 vote (Eng:1)
 Good: 1 vote (Eng:1)
 Decent: 1 vote (Eng:1)
 So-so: 1 vote (Eng:1)
 Not really good: -
 Weak: 1 vote (Eng:1)
 Bad: 1 vote (Eng:1)
 Awful: -
 Worst ever: -
Seen in part or in whole by 14 users, rank: #3207 (of 6566)
Median rating: Decent
Arithmetic mean: 5.857 (Decent), std. dev.: 2.5873, rank: #5273 (of 7212)
Weighted mean: 6.033 (Decent), rank: #5014 (of 7212) (seen all: 5.83 / seen some: 7.58 / won't finish: 5.00)
Bayesian estimate: 6.641 (Good−), rank: #2987 (of 3433)
Number of tankoubon: 9
Chapter titles: We have 5
Vintage: 2013-05-26 (serialized in Monthly Shonen Ace)
Release dates: We have 30
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Graphic novel
    The Testament of Sister New Devil (GN 1) 2016-01-19 (from $119.99)
    The Testament of Sister New Devil (GN 2) 2016-05-03 (from $12.99)
    The Testament of Sister New Devil (GN 3) 2016-08-09 (from $12.99)
    The Testament of Sister New Devil (GN 4) 2016-11-22 (from $12.49)
    The Testament of Sister New Devil (GN 5) 2017-03-28 (from $10.39)
    The Testament of Sister New Devil (GN 6) 2017-07-25
    The Testament of Sister New Devil (GN 7) 2017-11-07 (from $12.99)
    The Testament of Sister New Devil (GN 8) 2018-03-06 (from $22.59)
    The Testament of Sister New Devil (GN 9) 2018-07-31 (from $10.39)

Japanese staff
Japanese cast
Original creator: Tetsuto Uesu (light novels)
Original Character Design: Nekosuke Okuma (light novels)
Japanese companies
Publisher: Kadokawa Shoten
English staff
English cast
Translation: Wesley Bridges

Karis Page
Steven Golebiewski (Volume 6)
Cover Design: Nicky Lim
Editor-in-Chief: Adam Arnold
Layout: Laura Scoville
Kaitlyn Wiley (Volume 6 - 9)
Laura Scoville
Production manager: Lissa Pattillo
Publisher: Jason DeAngelis
English companies
French staff
French companies
Publisher: Akata/Delcourt
French cast
Italian staff
Italian companies
Publisher: Planet Manga
Italian cast
German staff
German companies
German cast
Portuguese staff
Portuguese companies
Publisher: Planet Mangá
Portuguese cast
Chinese (Taiwan) staff
Chinese (Taiwan) companies
Chinese (Taiwan) cast

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