Tell me about your experience of encountering a ghost.

In the past, the light in the toilet was always flashing. One night I went to the toilet. It was nothing at first, but suddenly I saw an old woman at the door. She was wearing old clothes and was very cautious. Why do I say this? Because there was no one there at the beginning. After the lights flashed a few times, suddenly there was a person standing there, wearing a yellow coat. Then the toilet was sealed.