Heir to Japan’s ancient art of swordsmanship, the martial art of kendo is viewed by many as more than just a sport. While bouts are scored by points or ippon, very specific conditions must be met for a strike to count. Every element of mind and body should be seen to move as one. Practitioners give years of hard practice to hone their skills and develop the perfect ippon. We follow one Kendoka through a remarkable endurance training method, that involves fighting 100 bouts in quick succession.