Kusuda Naoki is a high school student who's lived quite normally for 16 years. But recently, disturbing visions of unbelievable creatures have begun to plague his peaceful - if slightly lonely - life.

Izayoi Takuma is a mysterious transfer student who implies that he knows of Naoki's "true past" and insists that they both possess great power which can only be properly unleashed if they work together. Naoki is confused, remembers nothing, and asks only to be able to return to his ordinary lifestyle.