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ONIMAI: I'm Now Your Sister!

1 season · 2023 · Ended

★★★★★3.7

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.

Episodes

All seasons

Mahiro's Confusing New Body

S01 · E01 Mahiro's Confusing New BodyJanuary 5, 2023

Mahiro's Time of the Month

S01 · E02 Mahiro's Time of the MonthJanuary 12, 2023

Mahiro's Close Encounter

S01 · E03 Mahiro's Close EncounterJanuary 19, 2023

Mahiro's New Friend

S01 · E04 Mahiro's New FriendJanuary 26, 2023

Mahiro Discovers Adventure and Social Gatherings

S01 · E05 Mahiro Discovers Adventure and Social GatheringsFebruary 2, 2023

Mahiro Goes Back to Middle School

S01 · E06 Mahiro Goes Back to Middle SchoolFebruary 9, 2023

Mahiro's Role-Playing Game

S01 · E07 Mahiro's Role-Playing GameFebruary 16, 2023

Mahiro's First Girls Sleepover

S01 · E08 Mahiro's First Girls SleepoverFebruary 23, 2023

Mahiro Rings in the New Year

S01 · E09 Mahiro Rings in the New YearMarch 2, 2023

Mahiro Ponders Boobs and Identity

S01 · E10 Mahiro Ponders Boobs and IdentityMarch 9, 2023

Mahiro Pretties Up

S01 · E11 Mahiro Pretties UpMarch 16, 2023

Mahiro's Future as a Sister

S01 · E12 Mahiro's Future as a SisterMarch 23, 2023

Cast

Marika Kouno

Marika KounoMahiro Oyama (voice)

Kaori Ishihara

Kaori IshiharaMihari Oyama (voice)

Hisako Kanemoto

Hisako KanemotoKaede Hozuki (voice)

Minami Tsuda

Minami TsudaMomiji Hozuki (voice)

Kana Yuuki

Kana YuukiAsahi Ohka (voice)

Natsumi Hioka

Natsumi HiokaMiyo Murosaki (voice)