ONIMAI: I'm Now Your Sister!

ONIMAI: I'm Now Your Sister!

7.3 2023 1 SeasonsEnded
AnimationComedy

When lazy, erotic-game loving Mahiro Oyama is transformed into a girl by his younger scientist sister's experiments, he becomes determined to change back, only to recognize that with his new opportunity, he may want to turn his life around.

Where to Watch

Free
Stream
Crunchyroll
Crunchyroll Amazon Channel
Buy
Amazon Video
Data provided by JustWatch

Seasons & Episodes

Top Cast

Marika Kouno

Marika Kouno

Mahiro Oyama (voice)

Kaori Ishihara

Kaori Ishihara

Mihari Oyama (voice)

Hisako Kanemoto

Hisako Kanemoto

Kaede Hozuki (voice)

Minami Tsuda

Minami Tsuda

Momiji Hozuki (voice)

Kana Yuuki

Kana Yuuki

Asahi Ohka (voice)

Natsumi Hioka

Natsumi Hioka

Miyo Murosaki (voice)

Gallery

Gallery Image
Gallery Image
Gallery Image
Gallery Image
Gallery Image

Similar Shows

Gonna Be the Twin-Tail!!

Gonna Be the Twin-Tail!!

2014 • 80% Match

An Archdemon's Dilemma: How to Love Your Elf Bride

An Archdemon's Dilemma: How to Love Your Elf Bride

2024 • 71% Match

Kuma Kuma Kuma Bear

Kuma Kuma Kuma Bear

2020 • 72% Match

Kubo Won't Let Me Be Invisible

Kubo Won't Let Me Be Invisible

2023 • 66% Match

THE IDOLM@STER CINDERELLA GIRLS U149

THE IDOLM@STER CINDERELLA GIRLS U149

2023 • 72% Match

Saving 80,000 Gold in Another World for My Retirement

Saving 80,000 Gold in Another World for My Retirement

2023 • 59% Match

Welcome to the N-H-K

Welcome to the N-H-K

2006 • 84% Match

Lycoris Recoil

Lycoris Recoil

2022 • 81% Match

Magical Sempai

Magical Sempai

2019 • 83% Match

Mob Psycho 100

Mob Psycho 100

2016 • 85% Match

TONIKAWA: Over the Moon for You

TONIKAWA: Over the Moon for You

2020 • 85% Match

Attack on Titan

Attack on Titan

2013 • 87% Match

Stranger Things

Stranger Things

2016 • 86% Match

WandaVision

WandaVision

2021 • 82% Match

Squid Game

Squid Game

2021 • 79% Match

Money Heist

Money Heist

2017 • 82% Match

The Good Doctor

The Good Doctor

2017 • 85% Match

My Hero Academia

My Hero Academia

2016 • 86% Match

Lucifer

Lucifer

2016 • 84% Match

Demon Slayer: Kimetsu no Yaiba

Demon Slayer: Kimetsu no Yaiba

2019 • 86% Match

Videos & Trailers

Opening | Identeitei Meltdown - Enako feat. P Maru-sama
Opening Credits

Opening | Identeitei Meltdown - Enako feat. P Maru-sama

Promotional Video [Subtitled]
Trailer

Promotional Video [Subtitled]

Official Trailer [Subtitled]
Trailer

Official Trailer [Subtitled]

AI Content InsightPREMIUM

Curious about this content?

Generate an AI-powered analysis of user reviews to see if this is right for you. Content suitability, warnings, and consensus.

Discussion (0)

Join the discussion