The Osaka Double Mystery: The Naniwa Swordsman and Toyotomi's Castle

Conan, Ran, and Kogoro are coming to visit Osaka, hoping to see Heiji's kendo match, but he ends up involved in a murder incident and misses his tournament. Later on, Conan and Heiji help solve a 13-year old mystery that claims new victims involving the hunt for Ieyasu's secret gold.