He wanders around Japan training young pupils, getting involved in feuds with samurai and martial arts schools, and finding his way through his romantic life.
It has been re-released in book format (first fully-compiled publication by Fumiko Yoshikawa in 1971), most of which are collections of several volumes, which compile the many newspaper strips.
It is a fictionalized account of the life of Miyamoto Musashi, author of The Book of Five Rings and arguably the most renowned Japanese swordsman who ever lived.
The novel has been translated into English by Charles S. Terry, with a foreword by Edwin O. Reischauer, published by Kodansha International under ISBN 4-7700-1957-2.
The long epic (over 900 pages, abridged, in the English version) comprises seven "books" detailing the exploits of Miyamoto Musashi, beginning just after the battle of Sekigahara, following his journeys and the many people who become important in his life, and leading up to his climactic duel with Sasaki Kojiro on Ganryujima (Ganryu or Funa Island).