Ace of Diamond

After a wild pitch that costs him his last middle school game, pitcher Eijun Sawamura is left burning with frustration—and a promise he and his teammates make to reach the national tournament in high school. His plans take an unexpected turn when a scout notices the potential in his unconventional throwing style and offers him a chance at Tokyo’s renowned Seidou High. Backed by his friends, Eijun takes the leap, determined to sharpen his abilities in a far tougher baseball environment.

At Seidou, the level of talent is overwhelming, and Eijun has to fight just to prove he belongs. He sets his sights on becoming the team’s ace, but fellow first-year Satoru Furuya, armed with blistering fastballs, quickly earns a prized place in the starting lineup. With new recruits joining an already formidable roster, Seidou pushes toward the top of Japanese high school baseball, meeting powerful opponents along the way.