After losing a fight of martial arts with the villain Katarou, Robin travels to Asia to find the True Master to train him in martial arts. While there, he encounters an elderly woman who prepares him for his meeting with the True Master through a series of tasks. Once complete, Robin faces off against Katarou, who followed him there to steal his apprenticeship with the True Master. Robin, along with the woman who reveals herself as the True Master, defeats Katarou and begins training. While Robin is away, the other Titans try to fill in the gap left by Robin by trying out his clothes and gadgets.