A small village on the brink of extinction due to depopulation. Faced with the reality that no children are being born, the villagers choose to recruit "collaborators" from the outside. The one chosen is Fumika, the young wife of a powerful man. Having never left the village, she is truly naive. Living naturally within the village's values, her judgment differs slightly from the norm. A few days after the recruitment ad is posted, a young man visits the village. After the details of the job (raw creampie sex with the wife to provide seed) are explained, Fumika mates with the man. Though confused at first, accepting his raw cock awakens emotions she has never felt before. From that day on, she does everything to stimulate his libido and encourage erections, begging for impregnation sex. While initially confused by the village's "way" and taking it seriously, Fumika eventually begins spreading her legs for pure pleasure, transcending her role.