Years ago in the land of Caliria, the humans and vampires lived peacefully. The hunters only taking out those who ate with no reason, the ones that became monsters and mindless killers who preyed upon the innocent.
The vampires only feeding upon those who agreed, and treated those people well and let them continue their normal lives. It was peaceful.
But then the hunters grew bored. The need of them rare. A few planned and the wife of the vampire king went missing. The only thing left of her was a corpse, with a stake through her heart.
His mercy vanished. He ordered his men to kill every last hunter of every emblem. Sending them out to specific families. The massacre happened silently. There were no screams in the night. Only the cries of children who lost everyone echoed through empty rooms, empty homes, as they discovered bloody dismembered bodies of their parents the next day.
The ruler of the living made it a rule to take every child, male or female, and make them hunters, to wipe out every vampire in revenge.
All this did was harden the heart of the vampire king. Eventually the vampires went into hiding. The elusive creatures now lurked for prey, the kingdom of vampires falling apart. The humans victorious.