The supernatural world is something humans know nothing about. They don't even know it really exists. Everything that you would call supernatural is protected by a special charm and can't be discovered by humans. Superno High for example is a school for supernatural creatures of all sorts in the rather small town of Yellow Wood but for humans it's a normal school with normal students and teachers. But enough of that because much more interesting is the story of nine supernatural beings who are attending Superno High. They have to face their own hardships and great changes in the supernatural world.