|Written by||Chiyo Rokuhana|
|Original run||2003 – 2009|
IS: Otoko demo Onna demo nai Sei (IS 男でも女でもない性?), is a completed drama manga series by Chiyo Rokuhana, first published in Japan in 2003. The IS of the title stands for intersexual(s) and the story follows the pain and troubles such people go through in their lives, such as gaining acceptance for who they are and their inability to reproduce.
The first volume of IS is a collection stories about two different intersexual characters and their separate troubles. Volumes 2 and onward deal with the life of intersexual Haru Hoshino, starting just before his birth and continuing past high school.
- Hiromi is an intersexual who was raised as a girl, who works as an office lady. She is the focus of the first part of the first volume.
- Ryoma is an intersexual who was raised as a boy, but later in the story changes her gender to female. She is the focus of the second part of the first volume. At the beginning of the story, Ryoma is a teenager.
- Haru Hoshino
- Haru Hoshino is an intersexual who was born with both testicles and ovaries, but does not have a surgery during infancy to make him look like more of one gender than the other. At 10 months old he has to have his testicles removed due to a medical condition. From preschool through middle school, he always played with the boys his age in school, and is raised as a boy because of that. However in high school, because he was registered as female on his birth certificate, he is forced to live as a female for three years. His situation is complicated more by the fact his body is maturing in a more feminine way, such as developing breasts and menstruating, despite his wish to live as a boy. During his story faces struggles such as bullying and trying to accept his body for what it is, as well as making friends and falling in love.
- "過去の受賞者一覧 : 講談社漫画賞 : 講談社｢おもしろくて、ためになる｣出版を" (in Japanese). Kodansha. Retrieved 2007-08-21.