He has been highly anticipated and watched all his life, just because he is the son of the samurai Echizen Nanjiro, and he has never lived up to the title of "successor of the samurai" and perfectly copied his father's tennis. However, his father has always expected Ryoma to truly play his own tennis instead of always imitating himself. For this purpose, he sent Ryoma back to Japan and back to Seigaku... And the story begins.