I joined a two-night, three-day neighborhood camping trip with my wife Haruka. I'm more of an indoor person, so I initially wanted to decline, but I respected my wife's desire to maintain good relations with the neighbors and decided to go. However, while Haruka was energetic and enjoying herself, I felt increasingly isolated. I got dragged into the older guys' drinking party that lasted late into the night, and before I knew it, it was morning. When I asked Haruka where she had been, she simply said she'd been sleeping beside me the whole time. But what exactly had she been doing—and with whom?