The Atobe Group plans a grand event for the inauguration of a new tennis court in Kanagawa—an exhibition match. Leading the charge is Keigo Atobe, captain of Hyoutei Academy's tennis team, who challenges the formidable Rikkai University-Affiliated Middle School to showcase their skills. As preparations intensify, Hyoutei's upperclassmen mentor their future captain, Wakashi Hiyoshi, while Rikkai's seniors ponder the leadership capabilities of their sole second-year member, Akaya Kirihara. Both Hiyoshi and Kirihara, driven by a desire to surpass their predecessors, immerse themselves in rigorous training, striving to prove their worth. The fate of Hyoutei and Rikkai hangs on the shoulders of these promising underclassmen, poised with ambition and high aspirations. Encouraged by the departing third-years, the second-years embrace the challenge of upholding the honor of their schools in the impending clash of tennis titans.