Ura・jutaizima

Based on the erotic game by Lune. Advanced series from Jutaijima. The school trip is very fatal. A ship carrying students for a holiday trip, was suddenly crushed by a storm, fortunately those who survived, were stranded on a strange island. On the Island, the behavior of girls becomes strange due to a strange virus infection. The virus makes the girls feel aroused and can not control themselves. The only way is to give sperm regularly, it can make them immune from virus attacks. If they are not given enough sperm, then it will make a heart attack from an unrelenting arousal....

Jutaijima

Based on the erotic game by Lune. The field trip ship was wrecked in a storm. A couple of schoolgirls and an ugly schoolboy, hated and bullied by them in school, drifted to safety on an uninhabited island. The girls were infected by a strange virus and eventually will die if not cured. The only way for the girls to survive is to be impregnated...

Secret of Devil's Island

A group of young adults have decided to travel to a mysterious island through a tour line. The island has been deserted of human life and the ruins of a once promising city continue to decay. Each of the group members have a reason to visit the island, including returning to their former homes or embarking on a scavenger hunt. During their visit, strange events start to take place and past memories and sexual emotions began to surface among the group. The tour takes a turn for the worst when several of tourists are found murdered, showing that someone remains on the desolated island. (Source: Anime News Network)

Koumi-jima: Shuu 7 de Umeru Mesu-tachi

Based on the CG collection by Aomizuan (青水庵). The main character, Seiichi, enjoys traveling to remote islands and is a teacher by profession. He is a teacher, and is a man of immense sexual prowess, but he is not satisfied with his daily life. One day, he receives a request from the chief of an island he knows. He is transferred to a remote island called Koumi-jima, also known as Childbirth Island. The "favor" was... The women of this island have evolved a unique constitution, with only one week between implantation and birth, due to the island's custom of specializing in the role of females, and have continued to thrive in their own unique way for hundreds of years. It seemed as if the island would continue to prosper at this rate, but because the islanders have been mixing only close genes among themselves, it has come to the point where only genes from outside the island can be used to produce the newborns. The island chief's request was for Seiichi, an immensely fertile man with an outside gene: "I want you to impregnate all the girls on the island"</i> That's what it was! The island's custom of specializing in the role of the female, the women want to satisfy the instincts of the men, who from the bottom of their hearts have the idea of male superiority. What will happen to the women who feel the supreme pleasure in pleasing men and giving birth to children when Seiichi appears on the scene?? Note: It has live-action AV adaptations: NIMA-049 (2025/01/31) and NIMA-050 (2025/02/28).</i>