At dawn on an alien post-apolyptic world, Echoes encounters Boogiepop as if for the first time, and to explain who she is, she begins to tell the story of Scarecrow. Some time ago, at the office of the Kuroda Detective Agency, Pigeon asks Kuroda, the Towa operative known as Scarecrow, to check up on Teratsuki Kyouiyichi who may have betrayed the Towa organization. Teratsuki is head of the influential MCE brand ice cream company and has donated a large sum of money to a hospital, however Kuroda finds nothing suspicious...