Japan's TV Asahi network will premiere a television anime adaptation of Tetsu Adachi's Baka-Kyoudai (Idiotic Siblings) manga under the title Gokyoudai Monogatari (Sibling Stories) on October 10. The original manga has been running on an irregular schedule in Kodansha's Young Magazine since 1999. The story centers on a sister and her twin brother who live carefree lives in Tokyo's lower-class neighborhoods and have heartwarming encounters with the local people. It received an award of excellence at the 7th Cultural Media Arts Festival in 2003. <br><br>
Yuki Matsuoka will voice the sister Onei Jinushi, and Yumiko Kobayashi will play her twin brother Junichir&#333; Jinushi. Sayaka Ohara will play the local restaurant waitress Shizuka.

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Yumiko Kobayashi is a Japanese voice actress. Previously affiliated with Arts Vision until August 2007, she now works as a freelance. She announced her marriage on April 7, 2006 and has 2 children.

Part of the seiyuu unit __Prits__ for the anime [Sister Princess](https://anilist.co/anime/836/Sister-Princess/) with other members [Natsuko Kuwatani](https://anilist.co/staff/95136), [Hisayo Mochizuki](https://anilist.co/staff/95393), and [Nana Mizuki](https://anilist.co/staff/95081/Nana-Mizuki). The group has been inactive since 2002, although various reunions have occurred.

Took over the voice role of [Shinnosuke Nohara](https://anilist.co/character/2951) on long-running series [Crayon Shin-chan](https://anilist.co/anime/966) from [Akiko Yajima](https://anilist.co/staff/95148) starting July 6, 2018.

Junichirou Jinushi