The Shadow Approaching Amuro A pre-story for the Detective Conan: The Darkest Nightmare. One morning, Conan notices a suspicious man watching Officer Rei Furuya at the Café Poirot. The man appears on Conan's way home again. Mitsuhiko, Genta and Ayumi begin to follow him, but he disappears in a shopping street. Conan asks Rei about the man. Rei was stalked by the man three days ago. Conan thinks that he perhaps is a Black Organization member or a Security Bureau officer.