Hume Hoshi, but refuses to nationalist views,as the father dreams of becoming a baseball pitcher. Hoshi begins to expose the son of a grueling training: More small Yuma attached to the body and hands special iron springs to complicate the work of muscles, thus intensively pumping them. A few years later, Hume joins the team in high school, " Sinclair ", where he meets Tyutu Bana,who would become his best friend and partner on the game. During school tournaments, Hume is faced with new competitors that have become good friends: Mitsuru Hanagatoy and Samonas Hosaka. After long and careful effort,Yuma finally enters into a professional team, " Giants " and at that time wins widespread popularity thanks to the original ways to run the ball.