Woman in her 50s. It's the age when you want stimulation more than peace. Shizuyo is tired of working with her husband a long time ago and now comforts herself in the middle of the day. Perhaps because of the emptiness, I let out a sigh after finishing. And one night, my husband brought his junior Yoshida home. The two of them hit it off with their husband who got drunk earlier, and they are the same age, so they feel like each other. And that night, after 25 years of marriage, Shizuyo accepted a man other than her husband for the first time...