In the 16th Year of Keityo (1611), the lord of Ogura Castle in Kyushu admitted Sasaki Kojiro's because of his great sword techniques. However, a group within the feudal clan which supported to use guns considered Kojiro an obstacle in their goals and has the well-known ronin, Miyamoto Musashi, fight him. Now because of political gain and greed, two honorable men are to fight to the death on Ganryu Island.

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