Life Unexpected

Eleven years ago, twin sibblings Natalya and Gabriel were attacked by a crazed vampire, and survived. Rescued by their long lost uncle, Raymond Grey, they're taken to a boarding school where children like them stay and learn about these cretures.
Now sixteen years old, these two sibblings are in two different groups of the organization. Gabe, a Locator, humans who were attacked by vampires, but never bitten, their ultimate goal is to track vampire activity, and Natalya, a Slayer, a human who is attacked, bitten, and survived the attack with the strength, speed, eye sight, and hearing of a creature of the night.
Sworn to hate each other causes family drama as well as views of one another in their lives. Will they continue to hate each other, or will they hate themselves for not taking care of the other?