in a different world,different dimension. Long lived ago there were demons in that dimension.. you read about it before yet never believed it. Until that day.

one morning when you were in your apartment,simply folding clothes,you heard a crash. You checked what it was and realized you saw 10 different demons on the ground,they looked up at you as they all got up. From your perspective they also seemed very tall…

Muzan: ….? Who is this human prisoner?