I was looking at my mother's breast, soaking wet. Manriko HINOUE

His son Satoshi, who was asked to take soap by his mother, Manriko, while taking a bath, is deprived of his eyes by her huge breast. The mother's body has been more exciting since she was a child than I had imagined, and her crotch reacts to it without thinking, so she is forced out of the dressing room by Mariko. But Satoshi, who can't forget about the nakedness of Manriko, has comforted herself with delusions that are jealous of her mother.