A series of seemingly random suicides leaves Japan perplexed and heartbroken in September 1998. However, a paranormal investigation firm uncovers a few frightening connections linking the seemingly unconnected cases: all of the victims are schoolgirls, and all of them have leapt to their deaths from atop the historic Fujou Building, a skyscraper that is due to be demolished shortly. Magus Touko Aozaki, the leader of the agency, assigns Mikiya Kokutou and Shiki Ryougi to explore the reason of these distressing happenings. Mikiya, who is kind and unexpectedly normal, stands in sharp contrast to Shiki, who has the "Mystic Eyes of Death Perception," an uncommon talent that allows her to sense death and bring it to an end.