High School for the Gifted

This is a story about a school for those who aren't human. At this school, there are many species: werewolves, vampires, sirens, mermaids/mermen, wizards/witches, griffins, dragons, ghosts, demons, angels, serpents, and humans that are "seers", they are ones that can see what happens in the future. There's a group of friends who are carefree, thinking they are safe from the society who hates them, boy are they wrong.