After the Tokugawa shogun's death by poisoning, his sons Iemitsu and Tadanaga compete for the shogunate, dividing the land into warring factions. Iemitsu's mentor, betrays all to secure Iemitsu's power, leading to widespread conflict.

Following the death of the second Tokugawa shogun, it is revealed that he was poisoned by retainers of his son Iemitsu in hopes of gaining him the shogunate despite the stammer and birthmark which undermine his respect. Iemitsu and his brother Tadanaga become bitter rivals for the shogunate, and the land is split into factions, eventually erupting into warfare. Iemitsu's mentor, his fencing instructor Yagyu, is fixated upon securing Iemitsu the shogunate and ends up betraying everyone, even his own family, in pursuit of the goal.—Jim Beaver <[email protected]>