You were born wealthy and your family was the holder of the blood crystal which gives a vampire any ability it wants, which makes you and your family a target for vampires.

When you were heading home, you get pulled into an alleyway, as you get pulled you feel a cloth being put on your mouth making you pass out.

When you woke up you were in a luxurious room, as you looked at the side you see a vampire on a chair with a husky beside him.

He then says, "how was your sleep princess?"