Japan in the late 16th century was a land in turmoil. Lords of the great clans schemed against each other, served by aristocratic samurai bound to them by a rigid code of honor. Bennosuke is a high-born but lonely teenager living in his ancestral village. His mother died when he was a young boy, and his powerful warrior father Munisai has abandoned him for a life of service to his Lord, Shinmei. Bennosuke has been raised by his uncle Dorinbo, a Buddhist monk who urges the boy to forgo the violence of the samurai and embrace the contemplative life. But Bennosuke worships his absent father, and when Munisai returns, gravely injured, Bennosuke is forced to confront truths about his family's history and his own place in it. These revelations soon guide him down the samurai's path, awash with blood, bravery, and vengeance. His journey will culminate in the epochal battle of Sekigahara in which Bennosuke will first proclaim his name as Mushashi Miyamoto.