This is a mysterious story that I actually experienced about May this year.
On that night, my parents had to work late on business and closed the key of the entrance door, and my grandfather and my two people stayed home.
Generally, it was about 8 o'clock, suddenly when I was in the living room, I heard the sound of "Gacha" and the door of the entrance door opening.
At the same time, I saw [the black shadow] from the entrance, passing through the living room "Suu ~".
I became frightened and could not move from the place, I thought "All of us will not come back soon".
When I was about 30 minutes I got a message saying "I'm leaving from home" from my parent, so when I tried to open the door of the entrance, somehow, the key that was supposed to be closed was open.
I became increasingly frightened.
After my parents came back, when I talked about what happened so far, I was told that "Is not it due to mind?" Or "You just forgot to close the key?"
I wonder if everything that happened that n