The Testament of Sister New Devil
新妹魔王の契約者 (original)
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 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!
Starring Yuichi Nakamura, Ayaka Asai, Kaori Fukuhara, Tomokazu Sugita, Iori Nomizu, Yuu Asakawa, Keiji Fujiwara, Sarah Emi Bridcutt, Seiko Yoshida
Watch "The Testament of Sister New Devil" on Apple TV+ (itunes) released in 2015. It's a animation and action & adventure show, and has a rating of 6.6 out of 10 from Imdb which is usually fine for this kind of show.
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