RosarioVampire: The Dragon Knight

Drake is not a hero. As much as he tried to be, people never appreciated him. Before long, his actions had him thrown out of every school in the country. The only place left for him is Yokai Private Academy, a school for Monsters. With no other options, he has to stay. But this twist of fate is not as unfortunate as it seems, and proves to be the best thing to happen to the world.