After decades of marriage, their relationship has cooled, and of course they don't have sex, leading to lonely days for Kanae. One day, she casually opens an adult website. Seeing the men and women having sex to their heart's content, Kanae unconsciously starts masturbating. But tragedy strikes, and her computer suddenly freezes. "I can't tell my husband that I was looking at this website..." Kanae calls for help. It's Tsunayuki, who lives next door and attends a computer vocational school.