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Poster for The Testament of Sister New Devil

TV series

The Testament of Sister New Devil

Original title: 新妹魔王の契約者

2015 · TV-MA · 2 seasons · 22 episodes

7.9

TMDB audience score
376 votes, out of 10

Trailer Where to watch

Synopsis

Toujou Basara is a high school student whose father has suddenly just remarried. His father then departs overseas leaving Basara with two new beautiful step-sisters. Little does he know, his new sisters, Mio and Maria are actually the new Demon Lord and a succubus!? Almost trapped into a life of servitude, Basara forms a reverse contract by accident and ends up becoming Mio's master! Hijinks ensue as Basara finds himself in one ecchi situation after another. However, Mio's life is in danger as she is pursued by demons and heroes!

About 8h 48m to watch every episode. An estimate: 22 episodes at the typical episode runtime of 24 minutes.

Where to watch

Official options in the United States:

Subscription

  • Crunchyroll
  • Crunchyroll Amazon Channel

Buy

  • Apple TV Store

All options on TMDB

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Trailer

Play trailer: The Testament of Sister New Devil: Season 1 - Trailer

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Main cast

  • Yuichi Nakamura
    Basara Tojo (voice)
    22 episodes

  • Ayaka Asai
    Mio Naruse (voice)
    22 episodes

  • Kaori Fukuhara
    Maria Naruse (voice)
    22 episodes

  • Sarah Emi Bridcutt
    Yuki Nonaka (voice)
    21 episodes

  • Tomokazu Sugita
    Lars (voice)
    17 episodes

  • Keiji Fujiwara
    Jin Tojo (voice)
    16 episodes

  • Seiko Yoshida
    Zest (voice)
    16 episodes

  • Yuu Asakawa
    Chisato Hasegawa (voice)
    14 episodes

  • Iori Nomizu
    Kurumi Nonaka (voice)
    14 episodes

  • Masaaki Itatori
    Cardinal (voice)
    11 episodes

  • Masaaki Yano
    Student (voice)
    10 episodes

  • Hiroki Etou
    Seito (voice)
    9 episodes

  • Kazuyuki Okitsu
    Leohart (voice)
    9 episodes

  • Kenjiro Tsuda
    Ornis (voice)
    8 episodes

  • Mina
    Noel (voice)
    8 episodes

  • Reina Kimura
    Executive Committee (voice)
    7 episodes

  • Hibiku Yamamura
    Lucia (voice)
    7 episodes

  • Hiroto Kazuki
    Zolgear (voice)
    6 episodes

Seasons