OreImo is een Japanse animeserie van de zender Tokyo MX. De serie ging in première op 3 oktober 2010.
Sinds enkele jaren is de relatie van Kyousuke met zijn jongere zus Kirino koud, tot het punt dat ze alleen groeten delen. Maar op een dag vindt Kyousuke een moe anime-dvd in hun entreehal gevallen. Zijn interesse gewekt, hij zoekt de eigenaar, alleen om te beseffen dat het van Kirino is. Hij is geschokt, maar er staan nog meer verrassingen te wachten ...
Kyosuke and Manami graduate from high school. After the graduation ceremony, Kirino arrives to pick Kyosuke up following the end of her middle school graduation, and both head out to meet Manami. In a park, Manami scolds them about their relationship. Manami and Kirino then get into a fist fight. Manami scolds them some more and then confesses her love for Kyosuke. Manami then punches Kyosuke and accepts his rejection. Later on, Kirino and Kyosuke have a pseudo-marriage at the church. They kiss, and then Kirino gives Kyosuke back the ring she was given before. It's revealed that Kirino's idea for their relationship was to be a couple until graduation and then go back to being normal siblings. In the epilogue Kyosuke and Kirino head to Akihabara for a meet-up with Saori and a new member. Kyosuke casually kisses Kirino on her cheek, much to her disgust.