On a hot summer day, since my girlfriend was on a business trip, I had to go buy food by myself. By chance, I ran into Konomi, a childhood friend who lived next door to me. We used to be very close, but as we grew older, we gradually drifted apart, and the last time I saw her was at a party in Tokyo about ten years ago. Konomi had become more and more beautiful, and it seemed she was working at this place, so she would be staying for a short while. Taking this opportunity for us to meet again, I invited her to go out for drinks after work. On the way back from the bar, she wanted to stop by my house to hang out. I kept reminding myself that Konomi was my childhood friend, so nothing would happen. But everything happened just as I had feared. Konomi was too drunk, and I couldn't let her go home alone; the only bed in my house was just one. Neither of us could sleep, and we talked about things from our childhood, about our promise that we would marry each other when we grew up... Our feelings intertwined and crossed boundaries. Since that day, we had been living together for three days while she was here. On the fourth day, when I woke up, I could no longer see Konomi, nothing was left (except for the panties), everything felt like a dream...