Tennis prodigy Ryouma Echizen has won four straight competitions. He nonetheless continues to be overshadowed by his father, a former tennis professional. Ryouma sets his eyes on being the greatest tennis player in the world as soon as he gets back from his trip to America. He enrolls at Seishun Gakuen Junior High School, one of the top tennis programs in Japan, where he makes new friends and teammates and develops his own playing style. He must now overcome his biggest challenges—his father and himself!