The Testament of Sister New Devil
新妹魔王の契約者
Overview
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!
Seasons & Episodes
Season 1
When Basara Toujou's 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...
Burst
Basara Toujou has a hard life. He is the older step-brother to two demonic sisters, Mio and Maria Naruse, whom he protects from entitled demons looking to claim Mio's power for themselves. On top of that, rising political tension within the demon realm only makes his job more difficult. When a messenger arrives with summons for Mio to the demon realm, she and her friends go in spite of the danger. Now on the enemy's turf, Basara will have to grow stronger through erotic pleasure in order to do the impossible and protect everyone.
Key Information
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Cast & Crew
Tomokazu Sugita
Yahiro Takigawa (voice)
Yuichi Nakamura
Basara Tojo (voice)
Ayaka Asai
Mio Naruse (voice)
Kaori Fukuhara
Maria Naruse (voice)
Sarah Emi Bridcutt
Yuki Nonaka (voice)
Keiji Fujiwara
Jin Tojo (voice)
Seiko Yoshida
Zest (voice)
Yuu Asakawa
Chisato Hasegawa (voice)
Iori Nomizu
Kurumi Nonaka (voice)
Masaaki Itatori
Kraus (voice)
Masaaki Yano
Cardinal (voice)
Hiroki Etou
Shōhei Donoue (voice)
Photos
Frequently Asked Questions
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...
The Testament of Sister New Devil has 2 seasons with 22 episodes.
The Testament of Sister New Devil premiered on January 7, 2015.
No, The Testament of Sister New Devil has ended. The final episode aired on December 11, 2015.
The Testament of Sister New Devil originally aired on Tokyo MX. Check your local streaming services for availability.
The Testament of Sister New Devil has a rating of 7.9/10 based on user reviews.
The Testament of Sister New Devil is classified as Animation, Action & Adventure, Comedy, Sci-Fi & Fantasy.