Koumi-jima Shuu 7 De Umeru - Mesu-tachi

The mother of Konomi and Riana, highlighting the "oyakodon" (mother and daughter) trope often found in the genre. Production and Reception

The story follows , a high school teacher who has a penchant for visiting remote islands. Despite his mundane profession, Seiichi harbors a physical trait—significant sexual stamina—that he feels is underutilized in his everyday life. koumi-jima shuu 7 de umeru mesu-tachi

A vivacious and alluring island girl who is one of the first women Seiichi meets and impregnates. Riana Tachibana: Konomi's sister. The mother of Konomi and Riana, highlighting the

His life changes when he receives a specific request from the chief of , a secluded location colloquially known as the "Island of Childbearing". The island's population faces a biological crisis: due to generations of isolated breeding, the genetic quality of the male population has deteriorated to the point where the island's women can no longer conceive with local men. To save their lineage, they require DNA from an outsider. A vivacious and alluring island girl who is