The national tournament, representing the highest level of middle school tennis, has finally begun. Although top players from all over the country have gathered, Seigaku's captain Kunimitsu Tezuka has returned from injury, and their strength remains remarkable. Seigaku's first match is against the winner between Rokkaku Middle School and the Okinawa representative, Hyotei Academy. However, Rokkaku Middle School, which once battled fiercely with Seigaku in many matches, was utterly crushed by their opponents' offensive. Just as Rokkaku's coach finally saw through the opponent's secret, he encountered a disguised "accident"—a deliberate incident that left him injured! Witnessing this dirty play, the Seigaku members burned with anger but were powerless to intervene. Just as the atmosphere grew dim, Ryoma, who had just experienced intense battles in the U.S. Open, returned! But Ryoma claimed he came back only to cheer, not to compete. Then, Oishi proposed a match against Ryoma to decide the tournament lineup. Due to his hand injury not being fully healed, Ryoma defeated Oishi completely and took his place in the national tournament. The various masters at the national tournament are no ordinary opponents. Can the members of Seigaku and the super rookie Ryoma successfully reach the top...