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Crunchyroll to Stream The Testament of Sister New Devil Anime

Crunchyroll announced on Monday that it will stream the anime The Testament of Sister New Devil (Shinmai Maō no Testament) based on the light novel series by Tetsuto Uesu (Aesthetica of a Rogue Hero). The series will stream for members on Wednesdays at 2:00 p.m. EST, starting on January 7, and for free users one week later.

The stream will be available in the United States, Canada, Central and South America, the Caribbean, the United Kingdom and Ireland, Europe, South Africa, and MENA.

The "rather risque battle action" story centers around Basara Tōjō, a first-year high school student who is flustered by a sudden question by his eccentric father, "Hey, didn't you used to say you wanted a little sister?" Plus, his father announces that he is getting remarried. His father brings over two beautiful step-sisters, but then embarks 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. To add to things, erotic situations continuously start to happen in Basara's life. However, it turns out Mio is having her life targeted by other monsters and heroes. And so, the "desire/action" tale of the strongest contractor begins.

The main cast includes:

Yūichi Nakamura as Basara Tōjō, a male student who used to live alone with his father, and is bewildered by the sudden addition of step-sisters to the family. He vows to protect his younger sisters with everything he has.

Ayaka Asai as Mio Naruse, Basara's step-sister, an obstinate but beautiful girl with big breasts. She's actually the daughter of the devil king, from whom she inherited power.

Sarah Emi Bridcutt as Yuki Nonoka, Basara's childhood friend. She is reunited with Basara after he changes schools but...

Kaori Fukuhara as Maria Naruse, Basara's step-sister. Her true form is a succubus. She looks like a lolita but acts erotic toward Basara and Mio.

Yuu Asakawa as Chisato Hasegawa, the too-beautiful school nurse at Hijiriga Saka Gakuen, the school the Basara and the others attend.

Keiji Fujiwara as Jin Tōjō, Basara's father, a go-getting photographer who travels the world, but what are his true colors?

Hisashi Saito (Haganai, Fantasista Doll) is directing the anime at studio Production IMS (Inari Kon Kon, Date A Live II) from scripts by Takao Yoshioka (High School DxD, Yoshinaga-san'chi no Gargoyle). Yoshihiro Watanabe (Heaven's Lost Property, Haganai) is designing the characters for the series and Yasuharu Takanashi is composing the music.

Uesu launched the light novel series with illustrations by Nekosuke Okuma (Nitroplus) in 2012, and the eighth volume will ship in June with an original anime episode. Kashiwa Miyako has been drawing a manga adaptation in Kadokawa's Monthly Shōnen Ace magazine. Another (light novel) series by Uesu, Aesthetica of a Rogue Hero, also inspired a television anime.