Richard has a class reunion with his Judo club .
Worried that she might have been kidnapped by serial killers , Conan and friends use the Junior Detective League badge to track her down with his solar - powered skateboard .
Richard has a class reunion with Conan 's Judo club .
Worried that she might have been kidnapped by serial killers , Conan and friends use the Junior Detective League badge to track her down with his solar - powered skateboard .