After standing up to a group of obnoxious older boys on a train, 12-year-old Ryoma Echizen ends up playing  tennis against a high school star. Ryoma seems confident, but does he stand a chance against his opponent's physical advantages?
In a self-judged game, he's got the right
to call anything on his own court.
En un partido sin juez, puede cantar
lo que quiera en su campo.
En un partido sin juez, puede cantar
lo que quiera en su campo.
Dans une partie sans arbitre,
il peut décider s’il y a faute.
É um jogo de autoarbitragem,