Ongoing
“High school student Masato moves in with a relative and encounters his overly affectionate "big sister cousin."”
Itoko no Oneechan ni Amaechau?
いとこのお姉ちゃんに甘えちゃう?
6.48
18,251 rank · 4,140 readers · 11 favorites
Seinen
Comedy
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...
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Honest pros & cons
Based on your library
Synopsis
High school student Masato moves in with a relative and encounters his overly affectionate "big sister cousin."
Masato Ooizumi just entered high school and he finds himself staying with a relative. Living there is his "big sister cousin," who's being way too close with him!? (Source: Shueisha, translated)
What people say
Community consensus
Derived from 4 sampled reviews
4.5
/10
What 4 readers settled on.
0%
recommend
Score distribution
median 4.5
mode 4
σ 0.50
Agreement
Strong agreement
σ 0.50 · scores cluster tight
The polarity gap
—
Not enough recommend signal yet
Score over time
↑ 0.50
Running avg · Sep 2024 → Mar 2025
Snap verdicts
· shortest highly-rated reviews
- 5 “The art style excels at showcasing the breasts in creative ways, and the manga serves as an easy, breezy read. However, the anatomy for other areas like the glutes is lacking, and the repetitive,...”
- 4 “The manga features a strong, eye-catching pair of "plot" that serves as its only notable feature. However, the work suffers from a complete lack of narrative development, relying entirely on...”
- 4 “The art is undeniably high-quality, and for those seeking mindless fanservice, the character designs are top-tier. However, the story suffers from repetitive teasing, a complete lack of genuine...”
Verbosity
Short · 25%
Medium · 50%
Long · 25%
Read Order & Related
A self-contained story.
No sequels, spin-offs or alternate tellings — Itoko no Oneechan ni Amaechau? begins and ends here.
Cast
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A Manga Publication
- Published May 2024 – ongoing
- Source Manga media type
- Ref. BS-M75358 catalog