Conan, Ayumi, Genta, Mitsuhiko, and Haibara return to Professor Agasa's home after a BIG Osaka versus Tokyo Spirits match. Haibara realizes the Higo phone strap she purchased is missing. She lost it while they were on the train. In the video Mitsuhiko recorded by coincidence is a sun-tanned man with a mustache picking up the strap. Conan and his friends go to look for the strap for the heartbroken Haibara, but...