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Frequently asked questions
What is The Testament of Sister New Devil about? 
In this animated series, Basara Toujo, a high school student, finds himself in a precarious situation when his father remarries and he inherits two beautiful step-sisters. Unbeknownst to him, Mio and Maria are actually the new Demon Lord and a succubus! As Basara tries to navigate his new life, he accidentally forms a reverse contract with Mio, making him her 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, and Basara must step up to protect his new sister. With its blend of sci-fi, adventure, comedy, and animation, this series is sure to keep you on the edge of your seat.
Where can I stream The Testament of Sister New Devil? 
You can stream The Testament of Sister New Devil on: Crunchyroll Apple TV
What shows are similar to The Testament of Sister New Devil? 
Some TV shows that have similar genres and were produced around the same time as The Testament of Sister New Devil include That Time I Got Reincarnated as a Slime, Rick and Morty, Fullmetal Alchemist: Brotherhood, Rise of the Teenage Mutant Ninja Turtles, Pokémon, Dragon Ball Daima.