Completed
“Childhood friends Shion and Rui's relationship transforms when a drug causes Shion to periodically change between male and female forms.”
Seduced by My Best Friend
黒ギャルになったから親友としてみた。
6.21
48,789 viewers · 521 favorites
Boys Love
Hentai
Magical Sex Shift
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
Childhood friends Shion and Rui's relationship transforms when a drug causes Shion to periodically change between male and female forms.
College students Shion Chihara and Rui Chihaya are childhood friends who enjoy picking up girls together. When a strange drug transforms Shion into a woman, Rui cannot resist sharing an intimate moment with him, even after learning his true identity. As they investigate Shion's new body and the events that shift him between male and female forms periodically, their relationship deepens in ways that they never before thought possible.
What people say
Community consensus
Derived from 11 sampled reviews
7.1
/10
What 11 viewers settled on.
70%
recommend
Score distribution
median 8
mode 8
σ 2.84
Agreement
Polarized
σ 2.84 · split reception
The polarity gap
6.0 pts
Recommenders 9.0 · others 3.0
Yes
No
Score over time
↓ 2.91
Running avg · May 2021 → Mar 2026
Snap verdicts
· shortest highly-rated reviews
- 10 “The character designs feature nice, perky nipples, and I am holding out hope for a second season to improve upon this experience. However, I am deeply disappointed by the lack of the expected yaoi...”
- 10 “The outstanding art style and unique plot make this a highly enjoyable watch, especially with the stimulating gender-bending premise and explicit content. While the story could be improved by...”
- 9 “This is a rare, hidden gem that features well-executed animation and a unique, enjoyable gender-bender concept. I have no criticisms to offer, as the experience was entirely satisfying and left me...”
Verbosity
Short · 82%
Medium · 9%
Long · 9%
Watch Order & Related
A self-contained story.
No sequels, spin-offs or alternate tellings — Seduced by My Best Friend begins and ends here.
Cast
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See all credits →Production slate
- Format 8 × 6′ eps × min
- Total runtime 0h 48m all episodes
- Aired Apr 2021 – May 2021
- Source Ona media type
- Rated Rx Hentai
- Ref. BS-19925 catalog
Licensed by
- Ascendent Animation Licensor