Twelve year old Ryoma Echizen is the tennis prodigy from America who has the personal history of winning 4 successive victories at the American Junior Tennis tournaments. His father, Nanjiroh Echizen, a tennis player of legendary status, recalls Ryoma back to Japan to attend the distinguished school of Seishun Academy Middle School. Ryoma, a first year, has his eyes set on being on the regulars team of the tennis club, which the school is famous for. The members of the Seigaku regulars team include Kunimitsu Tezuka, the captain of the tennis club, whose ranking is that on the National's level. The vice-captain, Syuichirou Oishi, who has a calm and rational sense of playing sense, compliments the acrobatic plays of his double's partner, Eiji Kikumaru; making them the Golden Pair. Third year, Shusuke Fuji, a formidable player, is known for his tactical skill on the tennis courts. Then there's Sadaharu Inui, whose tennis style relies on what he calls, "data tennis" and Takashi Kawamura ...