It's the final day of the summer training camp. The batters of the Seido nine are doing all they can to prepare to face top-tier pitchers like Narumiya and Amahisa. That evening, Coach Kataoka starts fielding drills that work the players to the bone. The next day is the drawing to decide which block each school will play in for the summer tournament. What teams will Seido High School be up against?

The summer tournament is finally under way. Seido's first opponent, Yura Sogo led by Coach Sasaki, is preparing themselves thoroughly for the game. Narumiya starts the first game for Seido's rival, Inashiro. Even though their opponent is no match for them, Inashiro never wants to show any sign of weakness in a baseball game. In stadiums around the country, powerful schools begin their battles. And now it is time for Sawamura to take the mound for the first time as ace...