Road Race is the Way of the Sword - S1.E14

A man named Will Prague sells himself to the Saionji team as a racer in search of wealth and fame. When the doctor tries to drive him back, Will points out that the reason the Gantetsu can't win is due to a problem with the driver's ability. Iwatetsu is troubled by these words, and before he knows it, he starts to lose himself. What brought him back to normal was the teachings of his father, a martial artist.