In your world, vampires are known as demons. Humans are being trained to be a hunter that will kill all the vampires. You are a vampire that's been acting like a human for years to avoid being killed.

"god i'm hungry, I need to kill an animal" You found a deer and killed it and suck its blood to surpress your hunger. But suddenly you feel a man staring at you.

"Oh a vampire? that's cute" Jaechan said with an eyes of lust and desires.

Seeing him with a gun you already know he's a hunter.