Ore no Imouto ga Konnani Kawaii Wake ga Nai Specials
俺の妹がこんなに可愛いわけがない
Synopsis
The true end arc of Ore no Imouto. These four episodes branch out after the 11th episode of the main TV series and present an alternative version to the end of the TV series. These episodes contrast with the good end arc of the TV series, which was an original ending written for the anime, and instead closely follows the original story from the light novels.
Characters

Kousaka Kyousuke
Main

Kousaka Kirino
Supporting

Tamura Manami
Supporting

Gokou Ruri
Main

Makishima Saori
Supporting

Kousaka Yoshino
Supporting

Kousaka Daisuke
Supporting

Aragaki Ayase
Supporting

Kurusu Kanako
Supporting

Akagi Kouhei
Supporting

Miura Gennosuke
Supporting

Akagi Sena
Supporting

Makabe Kaede
Supporting

Hagry Ria
Supporting

Hoshino Kurara
Supporting
Opening & Ending Themes
Openings
- "irony" by ClariS
Endings
- 1: "READY" by Ayana Taketatsu (eps 1)
- 2: "†Inochi Mijikashi Koi se yo Otome† (†命短し恋せよ乙女†)" by Kana Hanazawa (eps 2)
- 3: "Shokuzai no Serenade (贖罪のセレナーデ)" by Kana Hanazawa and Yuuichi Nakamura (eps 3)
- 4: "keep on runnin' " by Ayana Taketatsu (eps 4)