Summer's ending, so I'll tell a ghost story while I still can.

This is a story that is scheduled to happen to me about 5 years from now. I won the lottery, so I decided to move into a nice big house in the countryside and enjoy a slow life, but that was when I first started living there. My mansion was a 6LDK house, but it was surprisingly cheap for a mansion, and it was a wonderful place where neighbors would occasionally drop by with flowers for some reason. On top of that, I ended up sharing the house with the best previous residents, Zombie Mr. Y (pseudonym) and Zashiki-Warashi Ms. F (pseudonym). After living with them, there was one strange thing. Despite the house being a wooden house built over 100 years ago, the toilet was always sparkling clean. Cleaning the toilet was my responsibility, but even when I tried to clean it once a week, it was always spotless for some reason. Feeling scared, I looked around and heard a noise from the floor. When I removed the floorboard, I found a person living there. This is where it gets scary: I bravely asked him if he had been cleaning the toilet. But he replied, 'No, I haven't!'