Conan, Ayumi, Genta, and Mitsuhiko are following the symbols in Tokyo but later have discovered that they are turning rounds. Conan sees one of the persons who approached them yesterday at the Tōto Tower. After that Conan watched the news about a crime boss known as Capane that have stolen 15,000 maple leaf gold coins in Italy a year ago. Conan discovers their true purpose which he later tricks them after knowing the real meaning behind the map card. After sending Ayumi, Genta, and Mitsuhiko home, Conan wants to do the job alone because it is a dangerous game were they are in now. Meanwhile, the three returned which they are following each and every symbol that have been shown on the card. After that they must search for a fish and can't find them, Conan seems to know were to look.