Ryou Oobayashi

Ryou Oobayashi is a top-seeded player in Kanagawa Prefecture and serves as a primary benchmark for talent in the region. He famously faced Eiichirou Maruo during his first official tournament appearance, establishing a high standard for the protagonist. As an elite competitor, he represents the upper echelon of regional tennis and acts as a crucial early hurdle in Maruo's path toward professional excellence.