When Yoshirō Torada dies in a strange tornado incident, with a dead centipede left behind, suspicion falls on the rival Tatsuo family. Tension escalates when their son, Kōji, is also found murdered under similar circumstances. As more victims appear, Conan and Heiji team up to solve the case, joined by the mysterious Officer Kansuke Yamato. Clues point to a hidden treasure, a shared past, and the legendary "Fūrinkazan" battle standard. With danger mounting, the detectives must use their sharpest skills to unravel the truth behind this twisted and historic mystery.