Romantic love story of Russian physician Gusev and Japanese woman Keiko takes place in time of fighting of Russian and Japanese scientists against poliomyelitis epidemic broken out in Japan in 1959.

The secret map of the treasure of Kenzan was stolen out of the house of a former soldier in Awa. A fight over the treasure that the map shows happens among the Rozyu, a Ronin, a thief, and the Hyodo family. Is the treasure there? Who will get it? Masakazu Tamura plays the role of a ronin from Edo, Hayato Arakida, from the Mumyo Tenshin school dojo and a swordmaster working for Lord Awa. The film is based on the original work of Kyotaro Nishimura. A period show with a fierce fight on a raft going down a river and romance.