Toshio, a 42-year-old single man whose hobby is frequenting brothels, is suddenly approached by a mysterious woman who introduces herself as Iris. She begs him to teach her how to please men! Naturally, Toshio—blessed with an insatiable sex drive—has no reason to refuse. He takes it upon himself to give the completely inexperienced Iris a thorough sex education. However, Iris is actually a princess from another world… and when Queen Cattleya sees how far her daughter has fallen, she appears before Toshio herself!

Not only did Toshio succeed in thoroughly corrupting Princess Iris with pleasure, but he also managed to do the same to Queen Cattleya. One day, Toshio proposes that in order to save the world, the two of them must offer him even greater hospitality. His plan? To have both women serve him at the same time and completely satisfy his desires! Persuaded by the eager Iris, a reluctant Cattleya finally agrees to Toshio’s outrageous request… And with a sly grin, the unbelievably virile Toshio prepares to enjoy their combined service—once again.