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ONIMAI: I'm Now Your Sister!
Synopsis
The story
Mahiro Oyama was just a normal erotic-game loving dude…until he woke up one morning as a woman! Turns out his mad-scientist little sister, Mihari, tried out one of her new experiments on him…with a disastrous outcome, as far as Mahiro’s concerned! But Mihari is as determined to study him as he is determined to go back to his shut-in, game-playing life, and one thing’s for sure…life is going to get a whole lot weirder from here on out!
ComedyEcchiSlice of Life
Episode guide
12 episodes
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01Episode 1Unwatched · AiredAired Jan 5, 202302Episode 2Unwatched · AiredAired Jan 12, 202303Episode 3Unwatched · AiredAired Jan 19, 202304Episode 4Unwatched · AiredAired Jan 26, 202305Episode 5Unwatched · AiredAired Feb 2, 202306Episode 6Unwatched · AiredAired Feb 9, 202307Episode 7Unwatched · AiredAired Feb 16, 202308Episode 8Unwatched · AiredAired Feb 23, 202309Episode 9Unwatched · AiredAired Mar 2, 202310Episode 10Unwatched · AiredAired Mar 9, 202311Episode 11Unwatched · AiredAired Mar 16, 202312Episode 12Unwatched · AiredAired Mar 23, 2023Characters & voices
500 credited
Bridget
Background
Sol Badguy
Background
Ky Kiske
Background
May
Background
Axl Low
Background
Kaede Hozuki
Supporting
Miyo Murosaki
Supporting
Momiji Hozuki
Supporting
Mahiro Oyama
Main
Mihari Oyama
Main
Asahi Ouka
Supporting
Nemu Fujimi
Supporting
Nayuta Tenkawa
Background
Chitose Azuma
Background
I-No
Background
Eroge Onsei
Background
Seme
Background
Uke
Background
Production staff
500 credited
Michiko YokoteSeries CompositionMichiko YokoteScript (eps 1, 2, 4, 5, 8, 9, 12)
Akio WatanabeEpisode Director (OP)Akio WatanabeStoryboard (OP)Akio WatanabeEndcard (ep 6)
Hirokazu KojimaKey Animation (ep 5)
NamoriEndcard (ep 11)
Yutaka NakamuraEndcard (ep 4)
Tomomi MochizukiStoryboard (ep 5)
Kazuhiro OotaAnimation Director (ep 11)
Kou YoshinariEndcard (ep 9)Hisako KanemotoTheme Song Performance (ED)
Hironori TanakaEpisode Director (ep 8)Hironori TanakaStoryboard (ep 8)Hironori TanakaKey Animation (eps 8, 10)
Norimitsu SuzukiEpisode Director (ED)Norimitsu SuzukiStoryboard (ED)Norimitsu SuzukiKey Animation (ED)Kaori IshiharaTheme Song Performance (ED)
Yoshimichi KamedaEndcard (ep 7)Themes & motifs
AniList community tags
Gender BendingTheme-Other97%
Primarily Female CastCast-Main Cast94%
RehabilitationTheme-Drama94%
Age RegressionCast-Traits94%
Cute Girls Doing Cute ThingsTheme-Slice of Life93%
Female ProtagonistCast-Main Cast87%
Primarily Teen CastCast-Main Cast87%
Coming of AgeTheme-Drama86%
HikikomoriCast-Traits83%
Family LifeTheme-Slice of Life81%
Otaku CultureTheme-Other79%
SchoolSetting-Scene72%
GyaruCast-Traits66%
TomboyCast-Traits64%
Found FamilyTheme-Other60%
ChibiTheme-Other54%
Community pulse
74.7K members
Score spread
10
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100
Watch status
Current7,545
Planning20,532
Completed39,769
Dropped4,546
Paused2,283
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What viewers say
500 community reviews