Eijun Sawamura enters his second year at Seidou High School as the baseball team sets its sights on the prestigious Koshien stadium. Alongside rival Satoru Furuya, Sawamura fights for the ace number and national glory.

The journey continues for the Seidou baseball squad as elite veterans and talented freshmen join forces. Sawamura must refine his breaking balls and mental fortitude to prove he belongs on the mound as the team's undisputed leader.

Captain Kazuya Miyuki leads the powerhouse school through a grueling competitive landscape. This sports drama captures the high-stakes pressure of the Summer National Tournament and the relentless drive required to reach the pinnacle of high school baseball.

Eijun Sawamura and Seidou High School baseball strive for victory in Ace of the Diamond Act II as they compete for a spot at Koshien.

Ace of the Diamond Act II, Diamond no Ace Act II, Eijun Sawamura, Kazuya Miyuki, Seidou High School, Koshien, Yuji Terajima, Satoru Furuya, Shonen manga, Ace of the Diamond Act II manga