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.
Kogoro, Conan and Ran visit Yakushima in Kagoshima Prefecture. To investigate the case of a body being abandoned on Jomon Cedar, they head to Jomon Cedar accompanied by guide Kitabeppu Ayaya, who was the first person to discover the body. During the long and difficult climb, they hear the legend of the "Yamahime", a terrifying monster that sucks human blood.