Koji, who met again after visiting a grave for the first time in several years, got off the train with his aunt's sister at the station on the way home, and decided to go sightseeing with his aunt <Akari>, the town where they lived together when they were young. Akari, who met again for the first time in a while, has become a mature woman with huge breasts and sex appeal, unlike in the past. I was going to do it. And when the sightseeing in the city was over and I was about to go home, it started to rain suddenly, and the train was canceled because of it, so the two of us ended up staying in a hotel for the night.