Koumijima Shuu 7 De Umeru — Mesutachi Install |best|

The core gameplay loop is simple but designed for high interactivity.

The central plot of the original work revolves around a high school teacher named , who visits a remote island with a unique and unsustainable population problem. After generations of inbreeding, the men on the island have become infertile. Seiichi, an outsider, arrives with an "insatiable lust" and becomes the key to repopulating the island by impregnating its female inhabitants. This controversial and fantastical premise is a key part of the work's identity. koumijima shuu 7 de umeru mesutachi install