Dos amigos dejan su pueblo para combatir con su ejército. Ambos, tras una derrota en el frente, se cobijan en la solitaria casa de Oko, una viuda que vive con su hija. Matachachi dejará que Oko le seduzca y, junto con ella y su hija se irá a Tokio, olvidando a su prometida...

Tras años recorriendo multitud de lugares, labrando su reputación como el más grande luchador del Japón, Takezo regresa a Kioto para enfrentarse al líder de la más prestigiosa escuela de samurais de la región. Como demostración de su valor, Takezo se dirige deliberadamente hacia una emboscada preparada por los seguidores de la escuela, mientras el joven y brillante luchador Sasaki Kojiro le observa, con el convencimiento de que puede derrotar a Takezo...

Takezo abandona su condición de samurai errante para vivir tranquila y humildemente con su amada Otsu, rechazando trabajar como maestro samurai para el líder del clan más poderoso del Japón. No obstante, Takezo accede a luchar con el joven y habilidoso guerrero Sasaki Kojiro. El combate final tendrá lugar en la isla Ganryu.

In Part I we see the young would-be swordsman setting out to achieve greatness in war, achieving nothing because fighting on the losing side, & then beginning his long period of wandering & training, with the goal always in mind of his duel with Kojiro. Part II builds toward that great duel on Ganryu Island, with considerable focus on Musashi's planning & forethought as to how to gain an advantage.

The remake of Yoshikawa's novel continues with the second installment in which Takezo, soon to be Miyamoto Musashi, emerges from the Himeji Castle after three years of intense contemplation and philosophical study and starting on his epic quest to complete his skill in the Way.

In the third installment of Yoshikawa's novel Musashi, things continue from the 2nd film at the end of battle, where Miyamoto continues on a mission of learning; with the introduction of his arch-rival Sasaki Kojiro; and lastly the large cast of characters rendezvouses for a fateful finale.

The fifth and final installment with the build up of the epic battle between Sasaki Kojiro and Miyamoto Musashi. With all the familiar characters making appearances: Otsu (Musashi's great love), Akemi, Matahachi (his former fellow soldier), old lady Osugi (still doggedly trying to defeat Musashi), and even the return of Priest Takuan (the man responsible for his journey towards enlightenment). But most of all, the boastful, long-haired and long-sworded Sasaki Kojiro.

In the 16th Year of Keityo (1611), the lord of Ogura Castle in Kyushu admitted Sasaki Kojiro's because of his great sword techniques. However, a group within the feudal clan which supported to use guns considered Kojiro an obstacle in their goals and has the well-known ronin, Miyamoto Musashi, fight him. Now because of political gain and greed, two honorable men are to fight to the death on Ganryu Island.

In the sixth and final episode Rentaro Mikuni steals the show as Baiken Shishido, Musashi's nemesis. Mikuni is the nominal villain of the film, but he is a devoted husband and father as well. He tries to kill Musashi only to avenge the death of his brother-in-law. While Baiken (who wields a chain and sickle against Musashi's sword) is a very human character and the emotions that Mikuni displays in his performance are quite believable and engaging

In the fourth installment, Musashi's potentially greatest opponent Kojiro jumps in and out of the story at the oddest and most coincidental moments. As his great love Otsu has succumbed to madness. Musashi then sets off to beat the functionaries of a treacherous clan in an arranged duel. 73 against one. Boastful Kojiro watches, secure in the knowledge that only he is a worthy opponent.

The film’s story centers on Musashi Miyamoto, one of the most famous swordsmen in Japanese history. He pioneered the Hyouhou Niten Ichi-ryuu style of two-sword fighting and wrote “The Book of Five Rings,” a book that has been compared to Sun Tzu’s “The Art of War” for its insight on tactics and strategy.

The first of five Musashi series, Shinobu and her brother Genichiro plead with the famous swordsman Musashi Miyamoto to teach them swordsmanship to avenge their father's death. The killers of their father see the sister and brother practicing with Miyamoto, and so enlist the help of another powerful swordsman, Kojiro Sasaki, which gives Sasaki an excuse to battle Miyamoto.

Musashi returns Japan's legendary swordsman and philosopher to the screen once again. In an original period drama based on the historical facts of the life and travels of the famous Miyamoto Musashi we find an apprentice, an instructor and the account of a famous battle in Japan of the Middle Ages where many questions will be answered.

In this first episode, we are introduced to Takezo, what Musashi used to be before he became the man of legend. His beginning are not exactly auspicious. He sides with the Toyotomi at Sekigahara, and as a result finds himself on the losing side of the historic battle. He and his friend Matahachi manage to escape the slaughter although the latter is wounded in his leg. They stumble across the young Akemi who makes her living with her mother Oko by robbing corpses of their armor and anything else they can sell. Oko takes it into her head to seduce Matahachi, which she does first by skillfully sucking the gangrene from his blood, and then just by sucking.