One day, Kou, a man who runs a vegetable shop, receives a consultation from Shiori, a beautiful wife who is famous in the shopping street, about sperm donation. He proposes that if it is sex. Shiori accepts it, but she becomes addicted to a world that she did not know. When he proposes the same problem to Kasumi, she tries impregnation sex with Kou-kun. She gradually becomes addicted to the pure pleasure of the younger man's foreign rod...