Japan is thrilled over a newly issued ten-thousand-yen note with Touto Tower printed on it, and Conan travels to the Nagano plant of the national banknote printer with his young detective club friends, Sonoko, Ran and Professor Agasa. Back in Tokyo, fake bills are found where someone has been killed, and the police set up a special unit to handle the case. Forged versions of the new note circulate on a scale never seen before, leaving people confused and uneasy. Heiji and Conan then go to Osaka, the city suspected of being where the fakes were made. The special marks thirty years of the anime with a mystery centered on counterfeit money.