Matajuro Yagyu was the son of a famous swordsman. His father, believing that his son's work was too mediocre to anticipate mastership, disowned him.
So Matajuro went to Mount Futara and there found the famous swordsman Banzo. But Banzo confirmed the father's judgment. "You wish to learn swordsmanship under my guidance?" asked Banzo. "You cannot fulfill the requirements."