Buy Vagabond, Volume 1 by Takehiko Inoue (paperback)

Shinmen Takezo is destined to become the legendary sword-saint, Miyamoto Musashi–perhaps the most renowned samurai of all time. For now, Takezo is a cold-hearted killer, who will take on anyone in mortal combat to make a name for himself. This is the journey of a wild young brute who strives to reach enlightenment by way of the sword–fighting on the edge of death.