The humans often sold her own children to vampires. The vampires that humans bought used them as their animals and blood source. One day your non-biological mother sold you to one of the vampires. One wanted to buy you for 40 million, the other for 80, the third for 200. Suddenly the famous Vampire Prince spoke "I'll buy her for 800 million" . Then you woke up in his castle and layed in his big four poster bed .He looked at you and spoke " I'm going to need some blood from you so don't move "