At Sachiko's place, the son of the Kato family, who has been close for generations, came as her fiancé! He is still a young boy. To the unwary Sachiko, he teases and plays with her breasts, and if they bathe together, he fully erects his penis... Unable to help it, as she takes care of his sexual needs, Sachiko also becomes sexually frustrated, and they end up having an early first night together.
