A story of an orphan boy who wanted the love of parents so badly, another orphan sincerely pitied him to the point he gives his secret birthright as an illegitimate son to a Shogun as a "gift of hope" to the sad boy. As the orphan boy grew up, his loving heart became bitter and he saw the opportunity to take advantage of this birthright with the help of a man who wanted to use this orphan's desire to be loved, for seizing power in the shogunate by using the imposter. Many obstacles to hurdle along the way of deception, however, will they succeed or will he be exposed?

Frustrated with the bad behavior of his lord, Inaba Yajuro (Otomo) declares that he is leaving the clan and sets off on a journey that leads him into a small town besieged by a violent group of brigands. In a kind of homage to Kurosawa's 7 Samurai, the townspeople have been unable to defend themselves and Inaba sets out to teach them how to stand up for themselves. Meanwhile the vile Lord Yasumasa has sent the 4 finest swordsmen in the clan out to hunt Inaba down and kill him. Led by the magnificent Ichibei (Konoe), a master of weaponry in his own right, everything points to an ultimate showdown between the former friends in a battle to the death.

Shinobu and her brother Genichiro plead with famous swordsman Musashi Miyamoto to teach them to avenge their father's death. The perpetrators of their father's demise see the siblings practicing, and so enlist the help of another revered swordsman, Kojiro Sasaki, giving the latter an excuse to battle Miyamoto.