Boku no Imouto wa "Osaka Okan": Haishin Gentei Osaka Okan.
Japanese title: 僕の妹は「大阪おかん」第1.5話「配信限定大阪おかん。」
Alternative titles: Boku no Imouto wa "Osaka Okan" Episode 1.5
Type: ONA
Source: Original
Episodes: 1
Status: Finished Airing
Aired: Dec 29, 2012
Duration: 3 min
Rating: PG-13 - Teens 13 or older
Studios: Charaction
Genres: Comedy

An online-broadcast-only episode of Boku no Imouto wa "Osaka Okan."