I've been married for six years and have been blessed with children, but I have a secret that I can't tell my family. For the past three years, I've been in a casual relationship with Mizuki, a beautiful woman who works as a dental assistant at a nearby dentist, and now we're having more sex than I am with my wife. It's noon, my wife is at work, my child is at nursery school, and I'm home on paid leave. Mizuki tells me she's on her break, and I reply simply that I'm at home. "I'll go," she says. Her break is two hours. In that limited time, we make love again and again.