Otono is married to an older husband and is now a full-time housewife. One day, while cleaning, she finds the gym clothes she wore as a student in the closet. Feeling nostalgic, she decides to try them on in front of the mirror. The bloomers are a little tight, but they are surprisingly comfortable, so Otono continues doing her housework in them. However, to the men, Otono's voluptuous figure in her bloomers is a mass of temptation. Her husband, who was oblivious to her, and the delivery man who came to deliver her a package all end up getting their dicks hard...