Demonic Vampire of Prophecy

Unburdened by the threat of Voldemort but having completely lost his magic at the age of fifteen, Harry desperately tries to find a way to be a part of his friends lives. Luckily, after a life threatening event forces the issue, his mother takes him to a long forgotten castle where she reveals the secrets of his blood. Harry Potter/Highschool DxD/Castlevania Crossover (AU)