IS: Otoko demo Onna demo nai Sei(IS 男でも女でもない性), is an ongoing 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. IS won the 2007 Kodansha Manga Award for shōjo.