Kojiro is invincible under the sun Sasaki Kojiro, renowned for his deadly swallow-cut, is the man destined to be sword-saint Miyamoto Musashi's greatest rival and opponent in the most well known duel in the annals Japanese history. While Musashi is an untamed beast driven by pure instinct, Kojiro is an icy cold-blooded killer. Blood and carnage abound when these two young men have a chance encounter at the Battle of Sekigahara.