Musashi no Ken  

Sword of Musashi, 六三四の剣

The story follows the journey of a young boy named Musashi who was raised from birth by parents both skilled in martial arts. His father was an expert and his mother had great enthusiasm for training him to be the best Kendo champion in all of Japan. Given his strong upbringing, it's no surprise that Musashi is incredibly strong, fast, and dedicated to his training. So, with this background, how could he not become a champion?