At the Kanto Tournament, the brillant play of Hyotei Academy's Gakuto and Yushi's drives Seishun's Momo and Eiji to assume the Australian formation, a technique they masterfully pulled off in a previous match. Meanwhile, the Seishun team of Kaoru and Sadaharu walk into a landmine filled with "scud serves" and accurate, aggressive doubles play. But just when things look bleak, Sadaharu unleashes his well-planned counterattack...