Toshio, a 42-year-old single man whose hobby is frequenting brothels. A woman suddenly appears before him, calling herself Iris, and begs Toshio to teach her how to please men! Toshio, with his insatiable sexual appetite, can't refuse such an offer and puts his skills to work, educating Iris, who has absolutely no sexual knowledge! But Iris's true identity is a princess from another world... Queen Cattleya appears, unable to bear seeing the princess so completely fallen!