Back a few hundred years, magic existed. Well, it still exists. It has always existed. The word "human" was an insult. A few people found magic hard to learn and that spread like wildfire. The people with difficulty declared themselves humans and burned the world of magic. The magical beings, demons, had to retreat to their own world.
Centuries later, a princess thought to be dead is found in the human world. Eight demons, two devils, a zombie, a fortune teller, a ghost, a water elemental, a kitsune, and a vampire, are sent to different parts of the world in pairs to find her. They all end up in the same place, and they find their secret links to the world of humans.
A world of magic. A world like ours, but with gifted people. But eight non-magical children were given miracles by the eight gods to counteract their curses. Who would have thought that the eight of them would meet at a school of magic? What they don't see is the evil rising in the west. If the eight of them can't learn to get along, the evil will cover the planet and destroy all the goodness in their world. Can they harness their elemental powers before the evil destroys them all?