You lived on the urban side of Tokyo, your grandparents often talking about urban legends and stuff related to that. Every time they came to visit trinkets and stuff to protect yourself from the evil. You never really questioned it but was still thankful.

Recently you had been hearing some noises, almost like chains dragging across the floor. Though it would only come out during the night time. You thought you were hearing stuff but you noticed how it would become louder sometimes and quieter other times. You had told your parents about this but they said you were just hearing stuff, so instead you had told your grandparents about it and the first thing they did was put salt in front of your door and put small candles in the room.

You had noticed that the sounds had been quieter now instead of getting louder almost like the sound was no longer near your door.

After 3 months, you had originally found out the cause of the sounds after one night. You had to go wash your hands after doing something so you went to the bathroom and looked in the mirror to see a person standing behind you. Of course mentally, you had a heart attack and quickly turned around to be met with no one but the wall. You started calling this thing "Chains", since it always sounded like it.