In the year 2011, humans begin to manifest psychokinetic powers, leaving a trail of death and destruction in their wake. 1000 years later, Saki Watanabe finally has her own powers awakened, and after a ritual of passage, she rejoins her friends at school who had awakened before her. However, one of them, Reiko, is revealed to have weaker control over her powers than her peers, and soon afterwards she mysteriously disappears.