Sword Demon. Real-life figure Miyamoto Musashi was the most celebrated samurai of all time. The quintessential warrior-philosopher, Musashi authored A Book of Five Rings, a classic treatise in the canon of world philosophy and military strategy. But the path to enlightenment is an endless journey, and to get there through violent means—by way of the sword—makes mere survival an even greater challenge. After single-handedly defeating seventy bloodthirsty men from the Yoshioka clan, Musashi is at the greatest crossroads of his life—will he head toward the light and live a life among men, or will the allure of the darkness be too strong for him to resist? A chance encounter with the ferocious master, Itō Ittōsai, may make the decision to live by the sword inevitable.