(from ebookjapan):

How was Sasaki Kojiro a different person? Musashi was a member of a gang of juvenile thieves who attacked villages, until he met Kojiro at a young age and eventually became famous throughout Japan as a master swordsman.

Kazuo Koike and Noboru Kawasaki present a new interpretation of the story of the great swordsman Musashi Miyamoto. Includes many color pages at the beginning of the book!