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The Testament of Sister New Devil

新妹魔王の契約者

6.3/10(AniList score)201512 eps24 minJA

Action Ecchi Fantasy Romance#action-romance#demon-girls#harem-elements#high-school-setting#master-servant-relationship

Sultry succubi and demonic powers ignite a fiery passion in Basara's life. As forbidden bonds form, action and romance collide in a whirlwind of fantasy. If you love spicy supernatural romance, this is unmissable.

When a pair of sexy girls, Maria and Mio, come to live with high school student Basara Toujou, his life changes forever. The two girls have a secret that they don’t keep for long—Maria is a succubus, and Mio is a future Demon Lord. But Basara has a secret of his own—he’s the last descendant from a clan of demon-fighting heroes. To make things even more complicated, the girls force Basara into a master-servant contract, and Basara ends up becoming their master! What happens when you put a succubus, a demoness, and a demon-fighting hero under the same roof? They form a bond that will help them to take on anything!

Editorial mood guide by WatchMoodly Editorial Team · Base catalog metadata via AniList.

6.3/10 avg

Studio: Production IMS

Mood Rationale & Viewing Guide: Should You Watch The Testament of Sister New Devil?

💕romantic Mood 🗺️adventurous Mood 😄happy Mood

Within our mood classification system, The Testament of Sister New Devil aligns strongest with a romantic / adventurous / happy viewing mood (love stories that will make your heart flutter). Key tonal signals include action romance, demon girls, harem elements, high school setting, master servant relationship, fantasy world, making it a strong pick when you want a story driven by those themes without spoilers.

Watch If…

•You want an action, ecchi, fantasy anime series released in 2015 from Production IMS.
•You enjoy themes centered on action romance, demon girls, harem elements, high school setting.
•You want a compact 12-episode run you can finish in a weekend (~24 min per episode).

Skip If…

•You prefer high-intensity, gritty psychological thrillers over action and ecchi storytelling.
•You are looking for an ongoing, multi-season franchise rather than a completed release.

Official Trailer

Official Streaming Platforms

Crunchyrolllegal Prime Videolegal Apple TV+legal Crunchyroll Premium (Via Prime) Amazon Channellegal

Frequently Asked Questions About The Testament of Sister New Devil

Where can I watch The Testament of Sister New Devil (2015) legally online?

The Testament of Sister New Devil is available through official platforms including Crunchyroll, Prime Video, Apple TV+, Crunchyroll Premium (Via Prime) Amazon Channel. Use the streaming links on this page to open the licensed release directly.

What mood and genres does The Testament of Sister New Devil fit best?

The Testament of Sister New Devil is classified under Action, Ecchi, Fantasy, Romance and best matches a romantic or adventurous or happy mood, featuring elements of action romance, demon girls, harem elements, high school setting, master servant relationship.