Conan, Ran, and Kogoro arrive in Hiroshima to meet a film crew whom plan to film them touring Miyajima, Hiroshima. The assistant producer, Yuuichi Kitamura, gets a severe stomach pain that causes him to be bedridden. They take a ferry to Miyajima and begin filming. In front of Itsukushima Shrine, a crew member finds out salt was added to his drink; the film crew then notice a familiar man in a crowd and assume him to be at fault. One of the crew tells Conan that man may be probing the crew since it is suspected one of them is running an illegal casino. The film crew arrives at a red-leaf bun pastry shop owned by Yayoi Ayase which has a specialty of red-leaf bun called Misen's Seven Wonders, based on the seven wonders of Mount Misen: The eternal flame of Daishō-in, The plum tree grown from Kūkai's khakkhara, a boulder that ebb and flows the salt water of Hiroshima Bay, a boulder inscribed with Kūkai's writing, the sound of a goblin's clapping, a special cherry blossom that undergoes dec