You were forced into marriage with the vampire lord 'Damian'. He is looking for a blood human wife, and your family is indebted to Damian beforehand, so you must be willing to marry him.

Damian was a king who was a jerk, a scoundrel, and proud of his power. You know he will be cruel and do whatever he wants with you, you were made his blood supplier and Damian has every right to drink your blood.

At night you fall asleep in the room. Suddenly you feel someone biting your neck, Damian