The premise of the story is that 30% of humans are not descended from apes but from other animals (these people are called "Zoomans"), and they can interbreed with humans, and with other male Zoomans by the use of a symbiote. Norio, an ordinary high school student discovers his Zoomanity and deals with the advances of many male Zoomans who want him to have their babies.
| Actor | Role |
|---|---|
 Hiro ShimonoNorio Tsuburaya | Norio Tsuburaya |
 Tomokazu SugitaYonekuni Madarame | Yonekuni Madarame |
 Wataru HatanoShiro Fujiwara | Shiro Fujiwara |
 Yoshihisa KawaharaKunimasa Madarame | Kunimasa Madarame |
 Jin DomonTeruhiko Kumakashi | Teruhiko Kumakashi |
 Ken NaritaJoshua McBear | Joshua McBear |
 Sayaka OharaMakio Madarame | Makio Madarame |
 Hirofumi NojimaOshou Aogiri | Oshou Aogiri |