The opening and ending theme songs have been revealed for the TV anime adaptation ofOnimai: I’m your sister now!which is scheduled to premiere in January 2023. Enko and Pmarusama perform the opening theme song “Identity Disintegration”while Mariko Kono, Kaori Ishihara, Hisako Kanemoto and Kaede Hozuki (ONIMAI SISTERS) perform the final song “Himegoto＊Crisisters”. Studio Bind is in charge of the production and Shingo Fujii is the director. Watch the trailer:
Besides performing the theme songs, ONIMAI SISTERS are also the main cast Onimai. Features Mariko Kono as Mahiro Oyama and Kaori Ishihara as Mihari Oyama. Two more cast members were revealed in the first trailer and they are Hisako Kanemoto as Kaede Hozuki and Minami Tsuda as Momiji Hozuki.
Nekotofu wrote and drew the original manga, which was originally serialized online but was also published in Ichijinsha’s Monthly Comic Rex magazine.KodanshaUSlicensed it in English and they describe the story:
Mahiro Oyama was just a normal gamer… until one morning he woke up as a woman! It turns out that his mad scientist little sister, Mihari, has tried one of her new experiments on him…with disastrous results as far as Mahiro is concerned! But Mihari is as determined to study it as he is to return to his cloistered, game-filled life, and one thing is for sure… life is about to get a lot weirder from here on out!