This OVA is divided into two parts. First one is about Torii Shoutarou following his younger sister on a date. Second one is about Christmas Eve, which Mitsuki, Yuuya and their friends spend at Kanzaki's house. Bundled with the limited-edition volume 7 of the manga. (Source: AniDB)
AniWave is the best site to watch
Saikin, Imouto no Yousu ga Chotto Okashiinda ga. OVA SUB online, or you can even watch
Saikin, Imouto no Yousu ga Chotto Okashiinda ga. OVA DUB in HD quality. You can also find
Project No.9 anime on AniWave website.
Comments