Ore no Imōto ga Konna ni Kawaii Wake ga Nai

 My Little Sister Can't Be This Cute is also known as Oreimo for short, is a Japanese light novel series written by Tsukasa Fushimi, with illustrations provided by Hiro Kanzaki. The first volume was published by ASCII Media Works under their Dengeki Bunko imprint in August 2008; as of November 2010, seven volumes have been released. A manga adaptation drawn by Sakura Ikeda started serialization in the March 2009 issue of ASCII Media Works' Dengeki G's Magazine. A 13-episode anime adaptation produced by AIC began airing in Japan in October 2010.
Plot:
Kyōsuke Kōsaka, a normal seventeen-year-old high school student, has not 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 Kyōsuke and his sister, now fourteen, would continue this way forever. One day however, Kyōsuke finds a DVD case of a magical girlanime entitled Hoshikuzu Witch Meruru which had fallen in his house's entrance way. To Kyōsuke's surprise, inside t he case is a hidden adult video game titled Imōto to Koishiyo! Kyōsuke 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 Kyōsuke's room and, in perhaps the first conversation she has initiated with him in years, says they "have things to talk about." Kirino brings Kyōsuke to her room and shows him an extensive collection of moe anime and lolicon bishōjo games she has been collecting in secret.

" It is a must watch anime so I totally recommend it to everyone who loves anime. You'll surely laugh in this anime because it is interesting.. so WATCH IT NOW.." :))