The boy goes to his friend's house to play and study, and during an unexpected moment, he accidentally sees his friend's mother, Iori Nanase, changing clothes. Oh, what a wonderful body of a young mother of one child, making this adolescent feel thrilled. While he is engrossed in watching, his friend's mother catches him, and he quickly runs away, but this mother understands the boy's desires. Given that she is a single mother, Iori Nanase is very deprived of sexual relations, so this lucky boy has caught her eye.