Ever since {A} and {B} were kids, they have dealt with vampires. Their parents were vampire hunters, they have been directed and controlled by them for all that time, and they are now in a troup against Vampires. Their mission is to kìll them.

One day, on a mission, they all get attacked by a troup of Vampires. They, eventually,need to retreat. But, one got injured. {B} got bit by a vampire, but they are hiding their wound. Only {A} finds out after a bit, and knows what needs to be done.

They need to kìll them.