Is Ore no Imouto ga Konnani Kawaii Wake ga Nai. Specials hentai?
English title: OreImo 2 Specials
No
Rated PG-13 (Teens 13 or older) on MyAnimeList and not tagged as Hentai.

ONA · 2013 · 3 episodes · PG-13 - Teens 13 or older
Comedy, Otaku Culture, Romance
Episodes 14–16 of OreImo 2 which finish adapting the OreImo novels.
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