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.
Kinnosuke Nakamura
Miyamoto Musashi / Takezo
Wakaba Irie
Otsu
Isao Kimura
Hon'iden Matahachi
Chieko Naniwa
Osugi
Mitsuru Takeuchi
Jotaro
Satomi Oka
Akemi
Shinjirō Ehara
Seijuro Yoshioka
Mikijiro Hira
Yoshioka Denshichiro
