In 1730, the Tokugawa Shogunate orders the Yagyu Clan to repair a huge shrine. Since it cannot refuse the Shogunate's request, the impoverished Yagyu Clan tries to raise funds by obtaining a sword which holds the key to a wondrous, hidden treasure. After learning the sword's secret, Tange Sazen sides with the Yagyu Clan, but his motive seems to be more than just pure interest in the treasure...

Ce synopsis est en anglais : nous ne l'avons pas encore traduit.