A few years into my marriage, my relationship with my wife has cooled and we're living apart. It seems my childhood friend Yuu is the same, and we were complaining to each other over the phone. Then we decided to go for a drink for the first time in a while, and I invited Yuu over to my house. A few hours later, the alcohol gradually started to flow, and the lack of sex got the better of me, so I found myself entranced by Yuu's body and tried to push her down. She adamantly refused, saying that cheating was absolutely not okay, but it seemed that Yuu was just as frustrated, so I agreed to just have a little...just 3cm...and so we began a relationship that was more than friends, but not quite an affair...