僕の妹は「大阪おかん」
Original Title：僕の妹は「大阪おかん」
Languages:
- Japanese: 僕の妹は「大阪おかん」
- Chinese: 我的妹妹是「大阪大妈」
"My Little Sister is an 'Osaka Momma'" (僕の妹は「大阪おかん」), officially stylized as Boku-no-imoutowa"Osaka-okan", is a 12-episode anime television series produced by Charaction and directed by Kōtarō Ishidate. It aired in Japan on BS Asahi between December 21, 2012, and March 15, 2013. The series has been licensed for streaming by Crunchyroll. The story revolves around Kyousuke's younger sister, Namika, who returns to live with him after being apart for ten years, having transformed into an energetic "Osaka girl." The anime is presented in short format, with each episode lasting only a few minutes. Sōta Sugahara was responsible for the original character designs. The opening theme song is performed by Kana Asumi. An additional episode was included with the Blu-ray release of the series. The series has also spawned related works such as "Aru Chō, Ōsaka o kan no imōto ga dekimashite.", "Imōto ga Ōsaka o kan'na ndesukedo!", and others.