IS: Otoko demo Onna demo Nai Sei
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IS: Otoko demo Onna demo Nai Sei

Alternative Titles

Synonyms: I.S., IS, Intersexuality, Inter Sexuality, Aiesu
Japanese: IS ~男でも女でもない性~


Type: Manga
Volumes: 17
Chapters: 82
Status: Finished
Published: Jul 8, 2003 to Jul 25, 2009
Genres: Drama Drama, Romance Romance
Theme: Gender Bender Gender Bender
Demographic: Josei Josei
Serialization: Kiss
Authors: Rokuhana, Chiyo (Story & Art)


Score: 7.861 (scored by 14141,414 users)
1 indicates a weighted score.
Ranked: #9792
2 based on the top manga page. Please note that 'R18+' titles are excluded.
Popularity: #2633
Members: 5,632
Favorites: 99

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Volumes: /17
Chapters: /82
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This is not your everyday manga. It strictly deals with cases of intersexuality. I.S. stands for Inter Sexuality.

This manga deals with the struggles of intersex people: the pain they go through, the troubles they confront, and ultimately their inability to reproduce or even find a partner who will accept them as they are.

The series broken down into individual cases; each deals with different people, though some cases are much longer and more dramatic than others.


No background information has been added to this title. Help improve our database by adding background information here.


Hoshino, Haru
Ibuki, Kenji
Ihara, Miwako
Usami, Hajime
Hoshino, Youko
Hoshino, Taro

More reviewsReviews

Jan 21, 2012
Omamori (All reviews)
I.S. is one of the manga out there that I really loved. Not, because there's romance and mushy feelings that drown your sorrows and make you think 'Oh, perhaps I have a chance and one day my prince will come'. That's utter bullshit, as far as I'm concerned. It does, however, have warm feelings packed within it. Soft feelings, and sorrow. The pain of being different is shown very clearly in this manga, in many different ways. Being 'different' isn't something that a lot of people openly want, most people just want to fit in and be 'normal'. This shows in this manga, where being read more
May 13, 2021
Flaxman (All reviews)
This is going to be a hard review to write, because I have very mixed feelings about this manga.

IS: Otoko demo Onna demo Nai Sei is a manga composed of 3 different stories, the first 2 being only 6 chapters each and the last one taking up the majority of the manga. This is by far the best one and the only one I will be discussing in the review. To me, volume 2 (chapter 13) is where the actual story begins, so if you start at the beginning and really aren't feeling it I'd recommend just skipping volume one as it has no effect read more
Jun 6, 2008
wakka9ca (All reviews)
Don't be discriminatory towards the strange title of this manga. Don't worry, this is not yaoi, nor yuri, nor ecchi or hentai. In fact, this is one of the most touching and most mature shoujo/josei manga I have read. Of course, the main characters are intersexuals.

Story: the first bolume is composed of short storis while the rest is Haru's story. Although you will not encounter very deep plot (remember, this is a shoujo manga), the different chain of events that are changing the characters' life and personalities are very original and refreshing. The narration is very interesting as it swtiches POV back and forth read more
Aug 25, 2011
Pachi (All reviews)
Warning: This review is a bit long and a bit long winded at times.

I.S. initially drew me in because hey-- how many manga are out there that are about intersexed individuals? I'm a fan of Hourou Musuko among a few other manga that deal with gender identity and sexual orientation so upon seeing this, I got excited and immediately went on a hunt for it.
If this were a review of the first story, Case 1, I would score it like this:

Story: 9
It's short, but very sweet. I easily was able to feel for the protagonist Hiromi and though the translations were rough, I was nearly read more

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Poll: IS: Otoko demo Onna demo Nai Sei Chapter 82 Discussion
Mayuka - Oct 11, 2019
1 replies by Flaxman »»
May 13, 6:16 PM
Volume 4 Discussion
Mayuka - Jul 14, 2016
0 replies by Mayuka »»
Jul 14, 2016 10:09 AM