Shota-kun's father is the president of a company and suddenly has to go on a business trip overseas. During his absence, a beautiful secretary will be taking care of Shota-kun. The secretary is well-endowed, and when she wears her tight skirt, her hips look especially large, making Shota-kun's heart race. Taking advantage of his position as a child, he plays around by driving a toy car over her back and buttocks, touching her in suggestive ways, and indulging in various naughty experiences. Finally, he accidentally—? ends up in the bathroom with the secretary!?