Oreimo (俺妹), short for Ore no Imouto ga Konna ni Kawaii Wake ga Nai (俺の妹がこんなに可愛いわけがない, lit. My Little Sister Can’t Be This Cute)[and also known as Ore no Imouto (俺の妹), is a Japanese light novel series written by Tsukasa Fushimi, with illustrations provided by Hiro Kanzaki. A 12-episode anime adaptation produced by AIC aired in Japan between October and December 2010. Four additional episodes, which offer a different ending to the broadcast series, 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. A 13-episode second anime season produced by A-1 Pictures, titled Ore no Imouto ga Konna ni Kawaii Wake ga Nai. (with a period at the end), aired between April and June 2013.
Kyousuke Kousaka, a normal seventeen-year-old high school student, hasn’t gotten along with his younger sister, Kirino, in years. For longer than he can remember, Kirino has ignored his comings and goings and looked at him with spurning eyes. It seemed as if the relationship between Kyousuke and his sister, now fourteen, would continue this way forever.
One day, however, Kyousuke finds a DVD case of a magical girl anime entitled Hoshikuzu Witch Meruru (Stardust Witch Meruru), which had fallen into the entranceway of his house. To Kyousuke’s surprise, inside the case is a hidden adult video game titled Imouto to Koishiyo! (Love with Little Sister!). Kyousuke attempts to fish out the culprit who dropped the case by bringing up the topic of magical girl anime at the family dinner table. All that comes out is a strong negative reaction from his parents, especially his anti-otaku policeman father.
That night, Kirino bursts into Kyousuke’s room and, in perhaps the first conversation she has initiated with him in years, says they “have things to talk about.” Kirino brings Kyousuke to her room and shows him an extensive collection of moe anime and lolicon bishoujo games she has been collecting in secret.
[Oct 20, 2010] OP: ClariS – Irony
[Dec 22, 2010] Oreimo Vol. 1 Bonus CD: ED1 & ED2
[Jan 12, 2011] Oreimo Original Soundtrack
[Jan 26, 2011] Oreimo Vol. 2 Bonus CD: ED3 & ED4
[Feb 23, 2011] Oreimo Vol. 3 Bonus CD: ED5 & ED6
[Apr 06, 2011] Oreimo Vol. 4 Bonus CD: ED7 & ED8
[Apr 27, 2011] Oreimo Vol. 5 Bonus CD: ED9 & ED10
[May 25, 2011] Oreimo Vol. 6 Bonus CD: ED11 & ED12
[Jun 22, 2011] Oreimo Vol. 7 Bonus CD: ONA ED1&2
[Jul 27, 2011] Oreimo Vol. 8 Bonus CD: ONA ED3&4
[Dec 07, 2011] Oreimo Complete Collection+ Oreimo Comp+!
[Apr 17, 2013] OP: Claris – Reunion
[Jun 19, 2013] Oreimo. Vol. 1 Bonus CD: ED1 & ED2
[Jul 24, 2013] Oreimo Vol. 2 Bonus CD: ED3 & ED4
[Aug 21, 2013] Oreimo Vol. 3 Bonus CD: ED5 & ED6
[Sep 25, 2013] Oreimo Vol. 4 Bonus CD: ED7 & ED8
[Oct 23, 2013] Oreimo Vol. 5 Bonus CD: ED9 & ED10
[Nov 27, 2013] Oreimo Vol. 6 Bonus CD: ED11 & ED12
[Dec 25, 2013] Oreimo Vol. 7 Bonus CD: ED13 & ED14
[Jan 22, 2014] Oreimo Vol. 8 Bonus CD: ED15 & ED16
[Apr 26, 2017] Complete Collection+ Oreimo. Comp+!