I've been married for a few years, and I'm used to fighting with my wife, but it's been three weeks since she went back to her parents' house. I was complaining to myself when I got a call from my childhood friend Hibiki. We decided to meet for the first time in a while, and I invited her to my house. As we were reminiscing, I pushed her down, probably because I was frustrated. When I asked her if there was anything else, she said no kissing, and with a flushed face, she neither denied nor confirmed it. And so I thought that if it was only 3cm, it wasn't cheating, and so began a twisted illicit relationship...