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!
Currently, you can only stream The Testament of Sister New Devil on CrunchyRoll in the UK.
Currently, you can only buy or rent The Testament of Sister New Devil on iTunes in the UK, with prices starting from £13.99.
The first season of The Testament of Sister New Devil was released in 2015.
Currently there are 2 Seasons of The Testament of Sister New Devil. The and to date the last season of The Testament of Sister New Devil was released in 2015.
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