クールで自信家の天才テニスプレーヤー・越前リョーマと、彼をとりまく個性豊かなキャラクターの交流と激突を描く痛快スポーツアニメ。許斐剛のヒットコミックをTV化。越前リョ-マは、アメリカ各州のJr大会で4連続優勝を果たした天才テニスプレーヤーだ。テニスの名門・青春学園中等部に入学した彼は、さっそくテニス部に入部する。だが、マイペースでクールな態度が生意気だと、先輩たちの反感を買ってしまい、試合を挑まれることに…。
Echizen Ryoma is a young tennis prodigy who has won 4 consecutive tennis championships but who constantly lies in the shadow of his father, a former pro tennis player. He joins the Seishun Gakuen junior highschool, one of the best tennis schools in Japan, and there along with his teamates he learns to find his own type of tennis in an attempt to defeat his biggest obstacle of all: his father as well as himself.