![The Testament of Sister New Devil [Spanish] S1-S28](https://pbcdnw.aoneroom.com/image/2026/01/27/67994420e919131509d40378e3790895.jpg)
First-year high school student, Toujo Basara, was suddenly have two beautiful step-sisters adopted by his father. But Mio and Maria's true forms are actually the newbie Demon Lord and a succubus!?
Trailer
Cast
Kaori Fukuhara
Maria Naruse
Ayaka Asai
Mio Naruse
Sarah Emi Bridcutt
Yuki Nonaka
Yu Asakawa
Chitose Hasegawa
Yu Asakawa
Chisato Hasegawa
Iori Nomizu
Kurumi Nonaka
Yûichi Nakamura
Basara Toujou
Yûichi Nakamura
Basara Tojo
Yûichi Nakamura
Toujou Basara
Tomokazu Sugita
Yahiro Takigawa
Tomokazu Sugita
Shiro Kamen
Tomokazu Sugita
Lars
Keiji Fujiwara
Jin Toujou
Keiji Fujiwara
Jin Tojo
Keiji Fujiwara
JIn Tojo
Seiko Yoshida
Zest
Kira Buckland
Maria Naruse
Chris Hackney
Basara Tojo
Chris Hackney
Basara Toujou
Lauren Landa
Mio Naruse
Cindy Robinson
Kurumi Nonaka
Cindy Robinson
Chika Sakaki
Ray Chase
Lars
Ray Chase
Yahiro Takigawa
Ray Chase
Monster
Wendee Lee
Chisato Hasegawa
Wendee Lee
Mio's Mother
Wendee Lee
Afureia
Kirk Thornton
Jun Toujou
Kirk Thornton
Jin Tojo
Kirk Thornton
Byakko
Kyle Hebert
Zolgear
Kyle Hebert
Klaus
Kyle Hebert
Zolgia
Brian Beacock
Shiba
Brian Beacock
Kyoichi Shiba
Brian Beacock
Valflair
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