Ace of the Diamond Vol. 9 (Kodansha, 2018)

Seido High School is betting their title as a famous school on the regional preliminaries for Koshien, even without their Ace! The tournament starts now! In the first game, Furuya starts and Sawamura follows him up in his season game debut. The third round game is also a total victory, and Seido's tournament start is going great. However, their next opponent is Akikawa Academy, who have a pitcher with perfect control, Yang, also known as the Precise Machine! In the first inning, they bare their teeth and snap at Furuya's weaknesses, using them to gain points!!