Finished
“Basara gains demon step-sisters—Demon Lord Mio and succubus Maria—sparking chaos, protection, and lusty antics.”
The Testament of Sister New Devil: Storm!
新妹魔王の契約者〈テスタメント〉・嵐！
6.99
9,885 rank · 4,670 readers · 28 favorites
Seinen
Harem
Action
Supernatural
Ecchi
Would You Love or Hate This?
AI-powered analysis tailored to your taste
Based on your preference for character-driven stories with layered emotional arcs, this title's exploration of identity and belonging would deeply resonate. The pacing mirrors series you've rated highly, and its thematic depth aligns with your appreciation for nuanced storytelling...
However, the slow initial episodes might test your patience given your history of dropping shows that don't hook you early. The art style shift in the middle arc could also be a concern...
Personalized to you
Honest pros & cons
Based on your library
Synopsis
Basara gains demon step-sisters—Demon Lord Mio and succubus Maria—sparking chaos, protection, and lusty antics.
High school student Toujo Basara's life has taken a turn for the strange. Although hesitant about his father's sudden decision to remarry, he can't deny it comes with a couple perks—drop-dead gorgeous step-sisters...who also happen to be members of a demon clan! Mio Naruse is a Demon Lord and Maria Naruse her succubus servant. Chaos and passionate antics ensue as Basara gets acquainted with his new demonic siblings, trying to protect them from dangerous demon rivals and struggling to keep up with their lusty, devilish appetites. (Source: Seven Seas Entertainment)
What people say
Community consensus
Derived from 2 sampled reviews
5.0
/10
What 2 readers settled on.
50%
recommend
Score distribution
median 5
mode 3
σ 2.00
Agreement
Polarized
σ 2.00 · split reception
The polarity gap
4.0 pts
Recommenders 7.0 · others 3.0
Yes
No
Score over time
↑ 2.00
Running avg · Dec 2017 → Oct 2021
Snap verdicts
· shortest highly-rated reviews
- 7 “tl;dr: A series of solid supplemental slice of life side stories that tries to be something more but really shouldn’t have. I am going to start off by immediately stating that this absolutely isn’t...”
- 3 “I am a huge fan of the series (both the anime and the previous manga). What I really liked was the balance of action, fantasy, and ecchi. Each one is in proper proportion and it makes the story...”
Verbosity
Short · 0%
Medium · 50%
Long · 50%
Read Order & Related
Explore the The Testament of Sister New Devil: Storm! universe
Cast
See all →Gallery
See all →If you stay for this, you'll stay for these
See all →The community pairs this with
See all →Publication slate
A Manga Publication
- Format 30 × 5 ch × vol
- Total read 4h 00m approx
- Published Feb 2014 – May 2016
- Source Manga media type
- Ref. BS-M26908 catalog