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Based on the light novel of the same name, Oreimo follows Kyousuke Kousaka as he discovers his little sister's big secret and is dragged into the world of moe anime and lolicon bishoujo games.


Oreimo (俺妹), short for Ore no Imōto ga Konna ni Kawaii Wake ga Nai (俺の妹がこんなに可愛いわけがない, lit. There's No Way My Little Sister is This Cute) is an anime adaptation of the light novel series written by Tsukasa Fushimi. Twelve episodes originally aired in Japan between October and December 2010, and four additional episodes were streamed monthly via the official website and other video streaming sites between February and May 2011, before being released on Blu-ray Disc and DVD in June and July 2011.


Oreimo is about Kyousuke who finds out his younger sister has an enormous collection of eroge games with little sister fetishes. It's up to Kyousuke to help his little sister find folks who will accept her hobbies. Can Kyousuke keep Kirino's secret hobby from his parents and Kirino's model friends?


Kyousuke Kousaka (高坂 京介 Kōsaka Kyōsuke)
Voiced by: Yuuichi Nakamura
Gender: Male
Kyousuke Kousaka is a normal student who distanced himself from his little sister Kirino. Upon discovering Kirino's secret hobby, he helps Kirino to find folks who will accept her. Along with their struggle as siblings, Kyousuke's love for Kirino grows deeper.
Kirino Kousaka (高坂 桐乃 Kōsaka Kirino)
Voiced by: Ayana Taketatsu
Gender: Female
Kirino Kousaka is a young model and a star athlete. Though, she has a hobby, playing eroge games that deals with little sisters. She would often force Kyousuke to play eroge with her.

Theme Music

ED01"Imōto, Plea~se!" (!妹プリ〜ズ! Imōto Purīzu)Ayana Taketatsu001
ED02"Shine!"Ayana Taketatsu002
ED03"Horaism" ( ほらいずむ Horaizumu)Ayana Taketatsu003
ED04"White Heart" (白いココロ Shiroi Kokoro)Saori Hayami004
ED05"Orange" (オレンジ Orenji)Ayana Taketatsu005
ED06"Bangs☆" (マエガミ☆ Maegami☆)Satomi Satou006
ED07"Masquerade!"Kana Hanazawa007
ED08"Chameleon Daughter" (Dōtā カメレオンドーター Kamereon)Hitomi Nabatame008
ED09"Cause I Love You!" ( 好きなんだもん!Suki Nanda mon!)Ayana Taketatsu009
ED10"No, Tom Has Learned Sexual Arousal for His Little Sister" ( いいえ、トムは妹に対して性的な興奮をおぼえています Tomu wa Imōto ni Taishite Seiteki na Kōfun o Oboete imasu)Yukari Tamura010
ED11"Akihabara Dance Now!!" (アキハバラ☆だんす☆なう!! Akihabara☆Dansu☆Nau!!)Ayana Taketatsu, Kana Hanazawa, Hitomi Nabatame011
ED12"I'm Home." (ただいま。 Tadaima.)Ayana Taketatsu012
Series Credits
Person Name Episode Count
Atsuya Uki
Tsukasa Fushimi
Ayana Taketatsu

To edit the cast, go to an episode page.

Original US Poster Art

General Information Edit
Name Oreimo
Name: 俺の妹がこんなに可愛いわけがない
Romaji: Ore no Imōto ga Konna ni Kawaii Wake ga Nai
Publisher AIC
Start Year 2010
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Aliases My Little Sister Can't Be This Cute
Ore no Imouto ga Konna ni Kawaii Wake ga Nai
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