Oreimo is a tV series anime that premiered in fall 2010, produced by AIC Build.

About the production: the story comes from a light novel, there are 12 episodes of about 24 minutes and its current status is "finished".

Its main genres are comedy and slice of life, with themes such as Otaku Culture, Heterosexual, Tsundere and Urban.

On AniList, Oreimo has an average score of 65%, a good score, and appears on 148,308 users' lists.

The franchise continues in or follows from: Ore no Imouto ga Konna ni Kawaii Wake ga Nai TRUE ROUTE.

Kousaka Kyousuke, a normal 17-year-old high school student living in Chiba, 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 Kyousuke and his sister, now fourteen, would continue this way forever. One day however, Kyousuke finds a DVD case of a magical girl anime which had fallen in his house's entrance way. (Source: Crunchyroll)

Official synopsis from AniList.