Ichijinsha has announced that Nekotofu’s Onii-Chan Wa Oshimai! (ONIMAI: I’m Now Your Sister!) manga is getting an anime adaptation. A premiere date for the anime has not yet been revealed. A trailer for the anime has also been released, it previews panels from the manga and features the two main voice actors.

Production Crew:

  • Studio: Studio Bind
  • Producer: Egg Firm (Dungeon ni Deai wo Motomeru no wa Machigatteiru Darou ka IV)
  • Director: Shingo Fujii (Mushoku Tensei: Isekai Ittara Honki Dasu episode director)
  • Composition: Michiko Yokote (Jahy-sama wa Kujikenai!)
  • Character Design: Ryou Imamura (Yama no Susume Third Season opening animation director)

Cast:

  • Marika Kouno (Uma Musume – Silence Suzuka) as Mahiro Oyama
  • Kaori Ishihara (Kobayashi-san Chi no Maid Dragon – Shouta Magatsuchi) as Mihari Oyama

MAL Synopsis:

Mahiro Oyama was just a normal erotic-game loving dude…until he woke up one morning as a woman! Turns out his mad-scientist little sister, Mihari, tried out one of her new experiments on him…with a disastrous outcome, as far as Mahiro’s concerned! But Mihari is as determined to study him as he is determined to go back to his shut-in, game-playing life, and one thing’s for sure…life is going to get a whole lot weirder from here on out!

Trailer:

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