The son of a world famous mystery writer, Jimmy Kudo, has achieved his own notoriety by assisting the local police as a student detective. He has always been able to solve the most difficult of criminal cases using his wits and power of reason.
Conan and the Detective Boys, accompanied by Professor Wakasa and Subaru Okiya, go to a beach in Shizuoka that is collaborating with Kamen Yaiba. Wakasa and Okiya meet and negotiate! Furthermore, an incident occurs at the beach house.