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?
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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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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 “i came here for some good yaoi sex. i was hoping that they'd find a cure and have celebratory sex but alas, dreams are crushed. i am very disappointed in this anime. i wanted to give it a 1/10 for...”
- 10 “Pretty good ngl, the big cock and balls on the screen really turn me on aswel as the boy who turns in to a girl. The story itself could do with some improving such as having the Rui turn into a...”
- 9 “PEAK BISEXUALITY AWAKENING Uh this is my first review ever and I'll keep it short A well animated yaoi hentai like this is truly a rarity, a hidden gem. Add a unique concept that makes for a great...”
Verbosity
Short · 82%
Medium · 9%
Long · 9%
Watch Order & Related
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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