The daughter of a guesthouse on a remote island. A lively island girl with a damn sexy body. She wants to fulfill her duties as a woman as soon as possible, and can't help but be curious about [the protagonist](https://anilist.co/character/300939), who comes to the island from time to time. She is aware that she is a boob freak, and thinks it would be great if the protagonist liked big breasts. She is such an easy-to-give-birth type that her shorts look like perverted jeans. She has a secretly perverted personality, and often sneakily smells the protagonist's underwear in the changing room. She masturbates quite frequently while the protagonist is staying at the guesthouse, and comes often. Her perverted body is completely inherited from [her mother](https://anilist.co/character/300942). She wants to have at least five children. Her body is very flexible. She is so healthy that she has never caught a cold. She is not good at studying.

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" 
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).

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Konomi Tachibana