One day, her husband brings home a male co-worker named Togawa. The encounter between the man and woman is sudden, and when the drunk Togawa asks her out, Mako is unable to refuse and accepts. From then on, Mako begins to meet Togawa a few times a month, hiding it from her husband. When they meet, she indulges in intense sex as she desires. Then, one day, Togawa asks her to shave her lush pubic hair. Mako is afraid every day that her husband won't notice her now shaved crotch, but she becomes increasingly involved with Togawa...