The Testament of Sister New Devil

Name: The Testament of Sister New Devil
Genre: Comedy, Action, Animation
Released: 2015-01-01
Rating: 6.8
Cast: Tomokazu Sugita, Yuichi Nakamura, Ayaka Asai, Kaori Fukuhara, Sarah Emi Bridcutt

新妹魔王の契約者

2015| 2 seasons| IMDb 6.8

Comedy Action Animation

Basara Toujo 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 ens...

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Streaming info last checked: 20 Jan 2026

Cast

Tomokazu Sugita Yuichi Nakamura Ayaka Asai Kaori Fukuhara Sarah Emi Bridcutt Keiji Fujiwara Seiko Yoshida

The Testament of Sister New Devil

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