In turbulent 16th-century Japan, the leaders of a minor fief have their child taken from them as a political hostage. His mother and his clan endure years of tribulations until he can return.

An innocuous comment during a weapon inspection wounds the pride of low-ranking samurai Shinpachi, leading to an argument with his superior. The situation snowballs out of control, leading to a deadly duel and political fallout which threatens the entire clan. Declared mentally unstable by the corrupt authority, Shinpachi begins his descent into true insanity…

This is the story of a bad man who re-discovering humanity via woman and child while clashing with the yakuza and being hunted by a man called “Death” who has his own dark past. The prototype for the later two yakuza priest series with Shintaro Katsu and Tomisaburo Wakayama. Apparently so. And the swordsman motif seems to have been concurrent with Daiei's first ZATOICHI production.

Young swordsman Shintaro must fight against evil officials who plot to overthrow the youthful Shogun.

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.

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 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.

The great Sonny Chiba stars as Goro Saionji, a drifting thrill-seeker. Out to investigate a suspisious plane crash in the Red Valley, he uncovers a plot involving yakuza and a shady land developer to evict an old farmer off of his land to build a sky resort. Goro must now help the old farmer and his daughter and take those criminals on.