The Testament of Sister New Devil poster

The Testament of Sister New Devil

2015 Animation, Action & Adventure, Comedy 2 seasons

TMDB rating 7.9/10 Ended

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!

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Seasons2

  • 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!

    All episodes available

    TMDB rating 6.7/10

  • After two demon girls, Maria the succubus and Mio the demoness, force Basara into a contract that makes him their master, the trio form a complicated master-servant relationship. Basara is the last descendant of a demon-fighting hero clan, but as master of two demon girls, he finds himself defending them instead of fighting them.

    All episodes available

    TMDB rating 7.0/10

This show also has specials. Specials never affect your progress, new seasons, or completion.

Cast and details

  • Yuichi NakamuraBasara Tojo (voice)
  • Ayaka AsaiMio Naruse (voice)
  • Kaori FukuharaMaria Naruse (voice)
  • Sarah Emi BridcuttYuki Nonaka (voice)
  • Tomokazu SugitaYahiro Takigawa (voice)
  • Keiji FujiwaraJin Tojo (voice)
  • Seiko YoshidaZest (voice)
  • Yuu AsakawaChisato Hasegawa (voice)
  • Iori NomizuKurumi Nonaka (voice)
  • Masaaki ItatoriElder (voice)
  • Masaaki YanoAnnouncement (voice)
  • Hiroki EtouBad A (voice)
Network
TOKYO MX
First aired
Jan 7, 2015
Latest episode
Dec 11, 2015

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Release dates are original schedules and may differ from availability in your country. A release never marks anything as watched. Last checked Nov 2, 2026.Schedule data from TVmaze, CC BY-SA.