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What's After the Movie?
Animated comedy

ONIMAI: I’m Now Your Sister! (2023): Cast

ONIMAI: I’m Now Your Sister! (2023) movie poster

ONIMAI: I’m Now Your Sister! is a 2023 animated comedy directed by Shingo Fujii and Eri Irei, starring Marika Kouno as Mahiro Oyama (voice), Kaori Ishihara and Hisako Kanemoto. It runs 4 hours 48 minutes.

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ONIMAI: I’m Now Your Sister! (2023) movie poster
Runtime
4h 48m (288 min)
Directors
Shingo Fujii and Eri Irei
Genres
Comedy , Animation
Original language
Japanese
After the credits
No No extra scene
The story

What Is ONIMAI: I’m Now Your Sister! About?

The premise of ONIMAI: I’m Now Your Sister! without spoilers.

Mahiro Oyama, a lazy otaku who spends his time playing erotic games, is unexpectedly transformed into a girl by an experiment conducted by his brilliant younger sister. Determined to regain his original form, he soon realizes the change gives him a chance to reassess his habits and consider turning his life around.

ONIMAI: I’m Now Your Sister! Themes & Keywords

· 27 tags
  • gender swap
  • fanservice
  • female nudity
  • based on manga
  • anime animation
  • otaku
  • daily life
  • slice of life
  • shonen anime animation
  • slice of life anime animation
  • school
  • shounen
+15 more
  • brother sister relationship
  • tsf
  • cute girls doing cute things
  • magical sex shift
  • boy turns into a girl
  • experiment
  • older brother younger sister
  • tv mini series
  • ecchi
  • lolicon
  • dark comedy
  • moe
  • psychological romance
  • hand drawn animation
  • inseki
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Cast & crew

ONIMAI: I’m Now Your Sister! Cast & Characters

Marika Kouno leads the cast as Mahiro Oyama (voice), with Kaori Ishihara as Mihari Oyama (voice) and Hisako Kanemoto as Kaede Hozuki (voice). Directed by Shingo Fujii and Eri Irei; 6 actors are credited in all.

Also Starring in ONIMAI: I’m Now Your Sister!

· 2 more
Videos

ONIMAI: I’m Now Your Sister! Trailers & Videos

2 videos: 2 trailers.

Official Trailer [Subtitled]
  • Trailer Promotional Video [Subtitled]

Seen ONIMAI: I’m Now Your Sister!?

FAQ

ONIMAI: I’m Now Your Sister! FAQ: Cast & Runtime

Runtime, director, cast, post-credit scenes and language of ONIMAI: I’m Now Your Sister!, each answered in a sentence.

How long is ONIMAI: I’m Now Your Sister!?

ONIMAI: I’m Now Your Sister! runs 4 hours 48 minutes (288 minutes).

Who directed ONIMAI: I’m Now Your Sister!?

ONIMAI: I’m Now Your Sister! was directed by Shingo Fujii and Eri Irei.

Who is in the cast of ONIMAI: I’m Now Your Sister!?

ONIMAI: I’m Now Your Sister! stars Marika Kouno as Mahiro Oyama (voice), Kaori Ishihara as Mihari Oyama (voice) and Hisako Kanemoto as Kaede Hozuki (voice), among 6 credited actors.

Does ONIMAI: I’m Now Your Sister! have a post-credit scene?

No. ONIMAI: I’m Now Your Sister! has no extra scene during or after the credits.

What language is ONIMAI: I’m Now Your Sister! in?

The original language of ONIMAI: I’m Now Your Sister! is Japanese.

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