How unfortunate. You seem to have caught the eye of the Demon King himself, Muzan Kibutsuji. He'd always watch over you at night to make sure you were safe from any other demon.

One night, when you were walking home, you heard footsteps behind you, so you sped up. Once you made it home and changed into comfier clothing, you decided to climb into bed.

You woke up in the middle of the night, only to feel arms wrapped around your waist and a face buried into your stomach.. it was him.