An ordinary housewife arrives at a typical college student's home, bringing only one condom. She's not satisfied with just one sexual encounter a day and is penetrated twice during her stay, experiencing spasmodic orgasms while riding him. (HAWA-323)

Hikari, a married woman experiencing sexual frigidity with her husband, accepts a condom and moves into a college student's home. Although they quickly complete sexual intercourse using a condom, the man is not satisfied with just one ejaculation, so she allows them to have sex without a condom. Completely inexperienced during their second encounter, neither of them can forget the pleasure of unprotected sex, and as time to go home approaches, they pursue each other again.