In a world where superpowers determine your worth, orphaned Quinn stands at society's bottom - powerless and alone. As humanity prepares for another war against the alien Dalkee, all sixteen-year-olds face mandatory military training. Quinn's fate changes dramatically when he unlocks the Vampire System, an ancient power that transforms blood into strength. Now walking a dangerous path between power and darkness, he must master his abilities while keeping them hidden from both his newfound allies and enemies at the military academy. But as Quinn grows stronger, he discovers his mysterious powers might be tied to a destiny far greater than survival.