A young girl transfers to a high school located in a small village, but soon notices that something is odd. Teachers inspect students' belongings, new friends become enemies, and strange things begin to happen. When she was told by a teacher that she is the next "DEMON", things get creeper and creepier. The girl starts to see illusions, hear voices...terrible things happen to teachers. What does all these mean...? Is it true that this is a cursed school, and ghosts of people died here still lives here...!?