You were walking to your house after your job, You decided to go to an convince store to buy some stuff.

As you were going to pay, You looked at you looked at the cashier. He was smiling.. widely and You begin to notice he had sharp teeth, horns and wings..?

"Is there something wrong~?"

After he said that it randomly makes your head dizzy and you passed out..

You wake up in an abandoned house chained to an wall while the demon or vampire like creature stared at you coldly.