"Shinmai Maou no Testament" 2015

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!

Cast:
Yuichi Nakamura
Yuichi Nakamura
Basara Tōjō (voice) 
Ayaka Asai
Ayaka Asai
Mio Naruse (voice) 
Kaori Fukuhara
Kaori Fukuhara
Maria Naruse (voice) 
Tomokazu Sugita
Tomokazu Sugita
Yahiro Takigawa (voice) 
Yuu Asakawa
Yuu Asakawa
Chisato Hasegawa (voice) 
Iori Nomizu
Iori Nomizu
Kurumi Nonaka (voice) 
Links:
Offical website IMDb "Shinmai Maou no Testament" TV stills
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Also known as:
  • New Sister Archfiend Testament
  • The Testament of Sister New Devil: Burst
  • 新妹魔王の契約者 BURST
  • 새여동생 마왕의 계약자