The keyword (often appearing as part of the title Koumijima: Shuu 7 de Umeru Mesutachi ) refers to a specific adult anime (hentai) series and its associated manga artist. The title translates roughly to "Island of Childbearing: Women Who Can Give Birth 7 Times a Week" or "Island of Pregnancy: Females Who Can Give Birth in 7 Days". Series Premise and Setting
At first glance, Shuu might seem like the typical "smart protagonist" trope we see in anime and manga (think Conan Edogawa or Kyoya Sata). However, Kaminaga writes him with a distinct human touch. koumijima shuu