Anime & Manga News

'Oniichan wa Oshimai!' Announces Additional Cast, Winter 2023 Premiere

by Vindstot
Aug 11, 2022 7:57 PM | 43 Comments
The official website of the Oniichan wa Oshimai! (Onimai: I'm Now Your Sister!) television anime revealed a pair of additional cast and the first promotional video on Friday. The anime series adapting Nekotoufu's comedy slice of life manga will air in Winter 2023.

Kaede Hozuki: Hisako Kanemoto (Jaku-Chara Tomozaki-kun)


Momiji Hozuki: Minami Tsuda (Tachibanakan Triangle)


Shingo Fujii (Mushoku Tensei: Isekai Ittara Honki Dasu episode director) is helming the anime at Studio Bind, with Michiko Yokote (Jahy-sama wa Kujikenai!) in charge of the series composition. Ryou Imamura (Yama no Susume Third Season opening animation director) is designing the characters. Daisuke Achiwa and Alisa Okehazama (Jujutsu Kaisen) are composing the music. Egg Firm is credited for production.


Nekotoufu originally posted the manga as a doujin, also known by its short title Onimai, on Pixiv in February 2017 before Ichijinsha picked it up for physical publication in June 2018. Monthly Comic REX began serializing the manga in April 2019. The sixth volume went on sale on April 27.

Kodansha USA licensed the manga in English for digital release last June and published the fifth volume on March 22.

Source: Moca News

20 of 43 Comments Recent Comments

AizawaDesuwa said:
On cloud nine rn

Really didn’t expect the visual to look this good lol.

same it really looks good

Aug 14, 2022 10:38 AM by iggggi

The entire premise seems problematic, because drugging someone into Gender Dysphoria is not that funny on paper.

Aug 13, 2022 2:36 PM by Piromysl

Rachiba said:
RobertBobert said:


Her - I love it when people try to take gender bender comedies so seriously.
I forgot that Mahiro still identifies as a man even though his sex is currently female (Even it is the product of a drug). I don't take it seriously, I just explain to Calal how the manga works, being almost always episodic and with touches of fanservice.


I'm just tired of people who perceive such works as something like a trans revelation.

Aug 13, 2022 5:01 AM by RobertBobert

RobertBobert said:
Rachiba said:

The first few chapters of the manga are only about her younger sister playing with Mahiro due to her new look. Then it becomes more of a normal CGDCT Slice of Life when more characters are introduced although it doesn't stop making jokes around the main character's body and lifestyle which is what this is all about.


Her - I love it when people try to take gender bender comedies so seriously.
I forgot that Mahiro still identifies as a man even though his sex is currently female (Even it is the product of a drug). I don't take it seriously, I just explain to Calal how the manga works, being almost always episodic and with touches of fanservice.

Aug 13, 2022 4:21 AM by Rachiba

Rachiba said:
Calal-Chan said:
Alrighty I read 11 chapters. My suspicions were confirmed. It is mostly a slice of nothing show mixed with a few fetishy themes. Just not my kind of show. I hope others enjoy it though.

The first few chapters of the manga are only about her younger sister playing with Mahiro due to her new look. Then it becomes more of a normal CGDCT Slice of Life when more characters are introduced although it doesn't stop making jokes around the main character's body and lifestyle which is what this is all about.


Her - I love it when people try to take gender bender comedies so seriously.

Aug 13, 2022 12:04 AM by RobertBobert

Rachiba said:
Calal-Chan said:
Alrighty I read 11 chapters. My suspicions were confirmed. It is mostly a slice of nothing show mixed with a few fetishy themes. Just not my kind of show. I hope others enjoy it though.

The first few chapters of the manga are only about her younger sister playing with Mahiro due to her new look. Then it becomes more of a normal CGDCT Slice of Life when more characters are introduced although it doesn't stop making jokes around the main character's body and lifestyle which is what this is all about.


Yeah then I still stand by the fact the advertising and way it presents itself is poor including the first 11 chapters for a showcase. They could have easily just done a brother, sister dynamic or sister, sister dynamic and it could be almost exactly the same then. Just without the sister dressing them in a cat outfit and taking pictures like a weirdo. If it removes the fetishy stuff and becomes a CGDCT's then it just seems like another slice of nothing show which doesn't interest me personally.

@KitsuYurikano

I hope many others do enjoy this. I was just expressing why I didn't. But I wasn't surprised how much fanservice and sugestive themes were in it based off what I assumed on the trailer. Is it some hardcore ecchi thing? Nah but it definitely doesn't look interesting to me and I felt I expressed why well enough at least.

Aug 12, 2022 6:30 PM by Calal-Chan

@Calal-Chan The people will be surprised at how wholesome really it uwu

Aug 12, 2022 6:07 PM by KitsuYurikano

Calal-Chan said:
Alrighty I read 11 chapters. My suspicions were confirmed. It is mostly a slice of nothing show mixed with a few fetishy themes. Just not my kind of show. I hope others enjoy it though.

The first few chapters of the manga are only about her younger sister playing with Mahiro due to her new look. Then it becomes more of a normal CGDCT Slice of Life when more characters are introduced although it doesn't stop making jokes around the main character's body and lifestyle which is what this is all about.

Aug 12, 2022 3:53 PM by Rachiba

RobertBobert said:
Calal-Chan said:


I think it is a hentai and therefore completely different from this. I am in no way saying this manga is bad because it has some fetishy content, but you literally brought up a hentai to compare to this. That is a pretty poor and unfair comparison. I literally just read 11 chapters of the manga and the whole thing is his sisters experiment on him. It is mostly presented in a comedic and light-hearted tone but occasionally gets a bit fetishy. I see nothing wrong with my assessment. I even did extra research because people were saying I was wrong acting like me saying it is fetishy means it is bad. I like weird fetishy stuff myself. Just not into slice of nothing shows. Also from my knowledge we never even get to see his male form and it isn't about him changing back and forth. At least from what I read anyway.


I'm just saying that it's pretty harmless compared to what anime tropes or other gender bender work has to offer.


Yeah I don't think it is toxic or anything. That was never my viewpoint xD

Aug 12, 2022 12:35 PM by Calal-Chan

Calal-Chan said:
RobertBobert said:


My point is that people just make superficial assessments and critique work before they even know about it.

@Calal-Chan This is a fairly typical comedy work about how the MC periodically changes gender. If that's too fetish for you then what do you think of the fresh Kuro Gal lol?


I think it is a hentai and therefore completely different from this. I am in no way saying this manga is bad because it has some fetishy content, but you literally brought up a hentai to compare to this. That is a pretty poor and unfair comparison. I literally just read 11 chapters of the manga and the whole thing is his sisters experiment on him. It is mostly presented in a comedic and light-hearted tone but occasionally gets a bit fetishy. I see nothing wrong with my assessment. I even did extra research because people were saying I was wrong acting like me saying it is fetishy means it is bad. I like weird fetishy stuff myself. Just not into slice of nothing shows. Also from my knowledge we never even get to see his male form and it isn't about him changing back and forth. At least from what I read anyway.


I'm just saying that it's pretty harmless compared to what anime tropes or other gender bender work has to offer.

Aug 12, 2022 12:33 PM by RobertBobert

RobertBobert said:
VampireLord1024 said:


I don't know why I was quoted for. I mainly just said I was guessing that most people that replied on this forum might not have started reading the manga, as there's another forum for the manga & I looked at those people's manga lists & they weren't reading the manga.


My point is that people just make superficial assessments and critique work before they even know about it.

@Calal-Chan This is a fairly typical comedy work about how the MC periodically changes gender. If that's too fetish for you then what do you think of the fresh Kuro Gal lol?


I think it is a hentai and therefore completely different from this. I am in no way saying this manga is bad because it has some fetishy content, but you literally brought up a hentai to compare to this. That is a pretty poor and unfair comparison. I literally just read 11 chapters of the manga and the whole thing is his sisters experiment on him. It is mostly presented in a comedic and light-hearted tone but occasionally gets a bit fetishy. I see nothing wrong with my assessment. I even did extra research because people were saying I was wrong acting like me saying it is fetishy means it is bad. I like weird fetishy stuff myself. Just not into slice of nothing shows. Also from my knowledge we never even get to see his male form and it isn't about him changing back and forth. At least from what I read anyway.

Aug 12, 2022 12:29 PM by Calal-Chan

This is the type of thing that panders to me perfectly, and the animation looks incredible. Bless studio Bind and Ryo Imamura.

Aug 12, 2022 12:28 PM by -nokt-

VampireLord1024 said:
RobertBobert said:


People watch or drop shows because of the tags, ignoring the synopsis. How much do you think is generally aware of the content of the original works?


I don't know why I was quoted for. I mainly just said I was guessing that most people that replied on this forum might not have started reading the manga, as there's another forum for the manga & I looked at those people's manga lists & they weren't reading the manga.


My point is that people just make superficial assessments and critique work before they even know about it.

@Calal-Chan This is a fairly typical comedy work about how the MC periodically changes gender. If that's too fetish for you then what do you think of the fresh Kuro Gal lol?

Aug 12, 2022 12:22 PM by RobertBobert

Alrighty I read 11 chapters. My suspicions were confirmed. It is mostly a slice of nothing show mixed with a few fetishy themes. Just not my kind of show. I hope others enjoy it though.

Aug 12, 2022 12:17 PM by Calal-Chan

RobertBobert said:
Calal-Chan said:
First the studio adapats an isekai with a pedo and now a dude who likes erotic games transforming into a woman. I guess they just like weird fetishy stuff. Visuals look great of course but I will be passing on this not my style of show.


Fetishes have nothing to do with it. It's just that the industry is moving too fast and studios are looking for material to adapt even where you would hardly have received the green light before.


@KitsuYurikano This is towards you too because of you stating it is a cutesy slice of life thing. I personally think the advertising trailer and synopsis is really poor marketing if that is the case.

I was mostly memeing due to the synopsis of the show. That and the fact their last show involved some weird themes as well. But a synopsis talking about how a brother who has an erotic game fetish transforms into a woman is just bad advertising for the show in general. Not to mention the trailer has multiple weird moments such as their panties/shorts or whatever falling off when he just turned into a girl and his sister walks in or big booby lady ontop of someone or again big booby lady doing this.



There is even a scene of his sister pushing him over and has him dressed in a cat girl outfit and then is taking pictures. Blame the trailer for peoples viewpoints.





Don't blame the people when the advertising makes it look like a fetish show. Could have easily just had two sisters bonding or a brother and sister bonding. The only reason it has a synopsis with the erotic game fetish brother turning into a woman cough actually a girl who is apparently 16 and looks 9 is a cheap gimmick.

Ps. Decided to try reading the first chapter and within like 5 pages we have information his sister drugged him and then walked in and looked underneath him now a her's shirt. Yeah hard to not see this being a bit fetishy.




We even have lines like this.





Aug 12, 2022 11:58 AM by Calal-Chan

RobertBobert said:
MegamiRem said:
I wanna watch this since Studio Bind is doing it but it's gender bender.
VampireLord1024 said:
It's good to know when it'll air, plus I'm guessing most people on the replies here haven't read the manga.


People watch or drop shows because of the tags, ignoring the synopsis. How much do you think is generally aware of the content of the original works?


I don't know why I was quoted for. I mainly just said I was guessing that most people that replied on this forum might not have started reading the manga, as there's another forum for the manga & I looked at those people's manga lists & they weren't reading the manga.

Aug 12, 2022 11:27 AM by VampireLord1024

I would probably not think much of this otherwise, but being produced by Bind makes it must watch.

Aug 12, 2022 9:23 AM by Punkero

Didn't like the character design and the synopsis doesn't sound good either.

Aug 12, 2022 9:09 AM by ZXEAN

Hisako is mostly known for Ika Musume and bullying a dude like 10 years ago I've never even heard of Jaku-Chakakan or w/e that is.

Aug 12, 2022 8:49 AM by LoveScope

Oh this is the gender bending thing lol. So far it doesn't look bad to say the least

Aug 12, 2022 7:45 AM by Tokoya

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