Kaho, an amateur wife who stays overnight at a college student's home after being given a single condom, initially feels awkward with the student, but they gradually become intimate and engage in protected sex. The college student, wanting more sex, and Kaho, feeling stress from her husband who won't embrace her, end up having unprotected sex because there are no more condoms. After being involuntarily impregnated, Kaho seems to have let go of her inhibitions, and next, she starts to actively seek unprotected sex herself...
