Ore no imouto ga konna ni kawaii wake ga nai

- Season 1

(2010)

Noticing Kirino has no one to share her hobbies with, Kyousuke asks for advice from his friend, Manami Tamura, who suggests that she make some otaku friends.

Kirino attends a meeting in order to make friends with people who share her passion for anime.

Kirino's secret hobby is discovered and Kyosuke decides to stand up for his sister.

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Kyosuke attends the midnight launch of an eroge in order to buy it for Kirino.

Kyosuke buys an eroge for Kirino. Later he learns about something might cause the siblings to get separated for a long time.

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Kyosuke receives an odd message from Kirino and decides to find out the truth about it.