|Rōmaji||Ore no Imōto ga Konna ni Kawaii Wake ga Nai|
|Aliases||My Little Sister Can't Be This Cute|
|Artist|| Hiro Kanzaki
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
continues to develop a close relationship with Kirino after certain incidents: Kirino getting a boyfriend and Kyousuke getting dumped by his girlfriend. When his mother gets suspicious about him and Kirino, his father has Kyousuke live out on his own for college.
|Kirino Kousaka (高坂 桐乃 Kōsaka Kirino)|
Voiced by: Ayana Taketatsu
coming home from America, she and her brother fight a bit when Kirino got a boyfriend. When Kyousuke's girlfriend broke up, Kirino confesses that she wants to be the most important person to her big brother.
|Ruri Gokou (五更 瑠璃 Gokou Ruri)|
Voiced by: Kana Hanazawa
|She has a master plan to create an ideal world for Kirino and Kyousuke.|
|Ayase Aragaki (新垣 あやせ Aragaki Ayase)|
Voiced by: Saori Hayami
friend of Kirino who hate Kyousuke for tainting Kirino's innocence. Though, she does ask him for advice to improve her relationship with Kyousuke.
|Saori Makishima (槇島 沙織 Makishima Saori) / Saori Bajeena (沙織・バジーナ Saori Bajīna)|
Voiced by: Hitomi Nabatame
is a close friend of Kirino and Kuroneko after the offline meeting. Her role is helping Kyousuke when Kyousuke asks her for advice with his relationships between Kirino and Kuroneko. In this series, Saori's origin is revealed.
|Manami Tamura (田村 麻奈実 Tamura Manami)|
Voiced by: Kana Hanazawa
|She is Kyousuke's childhood friend who does not get along with Kirino. Her past is fully revealed in the true route.|
|ED02||"Filter" (フィルター)||Saori Hayami||002|
|ED03||"Forever..." (ずっと・・・)||Ayana Taketatsu, Kana Hanazawa, Hitomi Nabatame||003|
|ED04||"Honest☆Rhapsody" (ほねすと☆ラプソディー)||Ayana Taketatsu||004|
|ED06||"Monochrome☆HAPPY DAY" (モノクロ☆HAPPY DAY)||Kana Hanazawa||006|
|ED07||"Kyou mo Shiawase" (きょうもしあわせ)||Yui Ogura||007|
|ED08||"Setsuna no Destiny" (刹那のDestiny)||Kana Hanazawa||008|
|ED11||"ありふれた未来へ"||Satomi Sato||011||ED12||"The last ceremony"||Kana Hanazawa||014|
|ED14||"Thank You"||Ayana Taketatsu||016|