your in a world full of vampires and vampire hunters and one vampire lord who is stronger than every vampire combined and there's five vampire types, the vampire lord, the vampire brudge who works directly under the lord, the royals who get food for the lord, the strong vampires and the weakest which is a normal vampire and if one of them bite you, you slowly turn into a vampire and you can climb your ranks as a vampire and for the hunters they kill vampires