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: Award Winning Award Winning, Drama Drama, Romance Romance
Demographic: Josei Josei
Serialization: Kiss
Authors: Rokuhana, Chiyo (Story & Art)


Score: 7.831 (scored by 15291,529 users)
1 indicates a weighted score.
Ranked: #11832
2 based on the top manga page. Please note that 'R18+' titles are excluded.
Popularity: #2999
Members: 6,570
Favorites: 103


Ranked #1183Popularity #2999Members 6,570
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Volumes: /17
Chapters: /82


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.


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


May 13, 2021
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 ...
Jan 21, 2012
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 ...
May 18, 2014
Preliminary (Unknown/82 eps)
Oh man, first let me start, I never expected to read this series like I do right now. It's a great series with a lot of great, complex characters that gives you hope about tolerance; you both see cases where people acept the protagonists and who don't, which shows the real world.
I fell in love with the series and characters, I really did. I admire Haru a lot.
I really recomend the series, the art may be weird at times, but it's worth it. The whole series is great and I would highly recomend this to anyone who's looking for a series about gender identity.

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Recent News

Recent Forum Discussion

Has anyone read this manga?
edinaa - Jul 15, 2009
10 repliesby Phaiolet »»
Jun 13, 12:53 AM
Poll: IS: Otoko demo Onna demo Nai Sei Chapter 82 Discussion
Mayuka - Oct 11, 2019
1 repliesby Flaxman »»
May 13, 2021 6:16 PM
Volume 4 Discussion
Mayuka - Jul 14, 2016
0 repliesby Mayuka »»
Jul 14, 2016 10:09 AM
Volume 3 Discussion
Mayuka - Jul 14, 2016
0 repliesby Mayuka »»
Jul 14, 2016 9:52 AM
Poll: IS: Otoko demo Onna demo nai Sei Chapter 1 Discussion
Stark700 - Oct 15, 2015
0 repliesby Stark700 »»
Oct 15, 2015 5:31 AM