In a world where tennis is not just a sport but a global spectacle, one man’s unmatched talent threatens to shake the foundations of the elite competition. Ren Kazama, a high school dropout, is a tennis prodigy with a mysterious past. Raised in isolation by his ex-tennis champion father, Ren has never been part of the official tennis world. His ability to anticipate every move of his opponents and his signature move, the Phantom Serve, make him the stuff of legend — but he's never competed in any formal tournament.
Ren's journey begins when he’s discovered by Tatsuo, a ruthless talent scout for the professional tennis leagues. Forced into the competitive world, Ren enters the National Selection Tournament, a high-stakes competition where only the best make it to the pro circuit. But Ren is not interested in fame or rankings; he’s seeking something far more elusive — an opponent who can challenge his skills, someone who can defeat him.
As Ren navigates the world of pro tennis, he faces rivals who are just as determined, talented, and passionate about the sport as he is. Alongside a ragtag team of misfits, including Rika Mizuno, a defensive genius, and Tatsuya Sato, a powerhouse hitter with raw potential, Ren will have to confront his greatest challenge yet: learning that even the most gifted players can’t succeed alone. To unlock his true potential, Ren must find not only rivals who can push him to his limits but also teammates who can stand beside him in the fight for greatness.
In the end, will Ren continue to defy the system and play only for himself, or will he discover that true mastery lies in teamwork, heart, and believing in others?