Mata desu! Again, collaboration-work from Conan en Kaitou Kid! Sugeeee! Kid made announcement that he's going to steal a jewelry called "Artemis no namida (Artemis's tears)" belongs to a hotel-owner in a certain island; Tsugeshima (Tsuge island). Of course, Inspector Nakamori is on the spot too. Conan, Ran, and Detective Boys taken by Sonoko to that hotel by coincidence. Kid got the jewelry & run succesfully, leaving Conan behind who noticed a strange reactions from the jewelry-owner. So Kid has to face the Detective Boys who mistaken him as Kudo Shinichi, and asked him to join them to catch Kid... that is himself hahahha