The Sword of Giyaman

Late 18th Century Japan, the Shogun era has just ended and is now at the mercy of a tyrannical emperor. The remaining Samurais and a new pro-democratic group begin to uprise against the emperor. The pro-democratic group begins the search of a mysterious sword, 'The Sword of Giyaman', which is so valuable that it can possible tip the balance of power in their favor. Will it be enough to save Japan?