Two lovers lost in the mountains. In what direction do not go, they find themselves in a mysterious forest pond, as if some kind of force does not want to let them go. Once upon a time, over a century ago, there had been a crime, whose shadow still hovers over these places.
Ryutaro is a spy employed by the shogun Tokugawa Iemitsu, who is the target of assassination attempts that aim to hand power over to his younger brother Tadanaga.
After mastering swordsmanship at the dojo of Chiba Shusaku, and unable to serve a clan due to his illness, Hirate Miki becomes a ronin who winds up as bodyguard to Shigezo of Sasagawa leading up to an epic battle.
