Monami, who was worried about her sexless marriage, received a package from her concerned sister. Inside was a "front hook bra". However, she had no opportunity to wear it and was feeling frustrated. One day, Monami was unable to resist seducing her husband's subordinate, Sakamoto, who came to her house. Sakamoto was tempted by Monami's busty charms, but he had no experience with women and was unable to remove the bra, so it was a failure! Monami missed this golden opportunity, so she put on the front hook bra, thinking "next time," and waited for Sakamoto to come again...