"When I first heard of Oreimo, I thought to myself, "yet another series that I must keep from watching in front of family and friends because it's borderline super ecchi (sexually suggestive)." [Editor's note: Aniplex licensed the series as Oreimo, a shortened version of the original Japanese: Ore no Imōto ga Konna ni Kawaii Wake ga Nai, which translates to, My Little Sister Can't Possiblby Be This Cute.] I was surprised to discover that the title was misleading, and the series has deeper themes like: acceptance, understanding, family bonds, and of course love for anime, manga, doujinshi (fan-made comics), and eroge (adult computer games)."
I strongly endorse this anime. The characters really made this anime I really thought the sister was unique