AOYAMA TRADING

In 16th century Japan, a young man has to choose between becoming a master steel maker like his father and grandfather before him, or becoming a samurai so that he can help protect his village from attacks by the various clans which want the high-quality steel made there.

Private Detective Kiyoshi Mitarai and Miyuki Ogawa arrive in Fukuyama, Hiroshima Prefecture. They are interested in a case which involves discovered bodies. The bodies were found drifting in the Seto Inland Sea, where the currents repeat every 6 hours.