The Prince of Tennis is back! Echizen Ryoma has returned from America after competing in the U.S. Open, just in time to cheer on his former Seigaku teammates at the National Championship. Having no intention of playing in the championships himself, Echizen is challenged by Oishi to a match to determine who should compete in the National Championships. Echizen wins the match easily and earns a spot on the Regulars roster just in time for the National Championships, where the competition has vastly improved. Will the Prince become Seigaku's pillar of support and lead them to victory at the National Championships?