Oreimo OVAs (2011)

Living on the shadow of his prodigious younger sister, Kyousuke Kosaka conducts a normal lifestyle until he accidentally finds out that she hides a secret. In addition to being smart, pretty, and popular; Kirino Kosaka is also an obsessive consumer of anime and eroge (adult computer games). After being assured that Kyousuke is committed to not mock her and keep this concealed from their parents, she starts to share a bit of her world with him. Kirino faces several problems as she tries to keep the appearances and balance her exemplar school life with her hobbies. Her brother then becomes a crucial ally while dealing with all the difficulties that lie ahead.

Source: www.anisearch.com/anime/6974

Was wäre wenn Kirino doch in die USA geflogen wäre um ihr Sportstipendium zu nutzen? Als Ersatz für seine kleinen Schwester und ihre Otaku-Vorlieben, nimmt sich Kyousuke stattdessen Ruri Gokou an, die überraschend seine Koohai in der Oberschule geworden ist. Dort hilft er ihr dabei neue Freunde zu finden und tritt extra dem Computerclub bei, um zusammen mit Sena Akagi bei der Entwicklung von Ruris Computerspiel mitzuhelfen.

Quelle: www.anisearch.de/anime/6974