Conan and the Detective Boys are attending author Omura Kosuke's writing class. They were introduced to him by their acquaintance Tamaki Book Cafe employee Yoshikawa Michiko. The owner of the house where the class is behind held and Omura's sponsor book collector Nojima Ryoji and his housekeeper Takeuchi Nagisa arrive. Nojima flies into a rage after reading Genta's novel, and...