On her first day at Nishi High School, 15-year-old Hiromi Oka is inspired by top player Reika "Ochoufujin" Ryuuzaki to take up tennis. Shortly after joining the school`s tennis club, she encounters Jin Munakata, the club`s new coach. Munakata puts everyone under rigorous training that even puts Ochoufujin to shame. Despite the hardships, Hiromi`s determination prompts the coach to select her as part of the club`s main players. Because of this, Hiromi must endure the peer pressure from her seniors to become an ace tennis player.