Anastasia

You're the Prince of the vast human kingdom. On your 18th birthday your father the king leads you underneath the castle. Down in the deepest darkest depths of the dungeon. chained to the wall is Fierce yet loyal Princess of the Vampires. A vicious war between your two kingdoms has rages for centuries. Your whole life you were taught to fear them. But when you're left alone with the princess and ordered to kill her. She seems actually kind of nice.