The story is about the icy relationship between 17 year old brother Kyosuke and his younger sister, 15 year old Kirino. In the beginning, Kyosuke helps her to find a club to talk about her interests in the hopes of helping her develop healthy friendships.
The story line is surprising in that you think that Kirino is going to be a polite and appreciative little sister, but instead she's pretty short tempered and kind of abusive to her brother. We can't quite understand what makes her tick -- she is totally immersed in anime that revolves around "little-sister" eroge, yet her own relationship with her brother is very conflicted. She tests her brother, asking him for one outrageous favor after another, and struggles to show any gratitude at all. The plot becomes more complex and you are rewarded with a lot of humorous drama which leads to a surprising, if not completely satisfying end.
I first wrote a review after watching the first season, and gave it 9/10. But after watching the second season, I completely fell in love with the show and now offer my rarely given 10/10 rating with no regrets.
First off, I want to say that the animation itself was top notch, and all the characters were very well done. The voice acting was very emotive and the subtitles seemed well matched to the dialog. The girls were unbelievably cute, I can't think of another anime that had such deliciously adorable characters.
Finally, the music in the shows was great, a different closing theme song for each episode! The theme song Irony by the duo ClariS is so beautiful and touching, it is just perfect for the story.
