A second cour of the second season of Ace of the Diamond Act II has been announced, which has unveiled a key visual, main theme song artists, and October 2026 premiere date. The second season’s first cour aired in Japan from April 5, 2026 to Juen 28, 2026 for a total of 13 episodes.
©寺嶋裕二・講談社／「ダイヤのA actⅡ‐SS‐」製作委員会・テレビ東京
Japanese rock band GLAY will perform the second cour’s opening theme song and music group OxT will perform the ending theme.
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#ダイヤのA actⅡ -Second Season-
第2クール OPED発表‼️
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決勝戦を描く第2クールに華を添える‼️https://t.co/BTKAZtbFbM
📺第2クール 26年10月からテレ東系6局ネット、AT-Xほかにて放送開始 pic.twitter.com/jKMQFoAAn7
— TVアニメ「ダイヤのA」公式 | 第2クール26年10月テレ東系6局ネット AT-Xほかにて放送開始 (@diaace_anime) June 28, 2026
Hideaki Oba (Love of Kill, Kunon the Sorcerer Can See) is directing the second season of Ace of the Diamond Act II Act II, with Kenji Konuta (returning) as series composer, Yasukazu Shoji (Restaurant to Another World 2) as character designer, and Hajime Hyakkoku (Ace of Diamond Act II Season 1) as music composer. OLM is in charge of the animation production.
Ryota Osaka reprises his role as the protagonist Eijun Sawamura, and is joined by other new cast members this season that include:
- • Shugo Nakamura as Koya Urabe
- • Atsushi Tamaru as Soichi Nagira
- • Kento Hama as Koji Nara
- • Toshiya Miyata as Koji Chimaru
A second season of Ace of the Diamond Act II was announced in May 2024. The first Ace of the Diamond anime had two seasons and was a Madhouse and Production I.G co-production, while the first season of Ace of the Diamond Act II was only produced by Madhouse and contained 52 episodes.
Mitsuyuki Masuhara directed all three seasons with Konuta as series composer. Minoru Ueta served as character designer on the previous seasons, but shared the credit with Satoshi Tasaki, who was the chief animation director for Ace of the Diamond and Ace of the Diamond -Second Season-, on the first season of Ace of the Diamond Act II.
The first season of Ace of the Diamond Act II aired from 2019 to 2020. It was a follow-up to Ace of the Diamond and Ace of the Diamond -Second Season-. Crunchyroll is currently streaming the past seasons in select countries and territories worldwide.
The anime is based on Yuji Terajima’s sequel manga series, which was serialized in Kodansha’s Weekly Shonen Magazine from August 19, 2015 to October 26, 2022. A total of 34 tankobon volumes were released in Japan.
The original Ace of the Diamond (titled Daiya no Ace in Japanese) manga series was serialized in Weekly Shonen Magazine on May 17, 2006 and ended on January 14, 2015. A total of 47 tankobon volumes were published in Japan.
©寺嶋裕二・講談社／「ダイヤのA actⅡ‐SS‐」製作委員会・テレビ東京
Kodansha USA licensed the first Ace of the Diamond manga series for English digital release. It describes the main synopsis as:
Eijun Sawamura had his heart set on the middle-school national baseball championships. But his team is eliminated thanks to a wild pitch thrown by Eijun himself. He’s planning to go to high school with his teammates and try again next year when he’s scouted by the famous Seido High School Baseball team. When he goes for a campus visit, he finds himself on the receiving end of a baptism by fire! His experience forming a battery with up-and-coming catcher Miyuki rekindles his passion for baseball!!
Sources: Ace of the Diamond Official X/Twitter, Anime News Network
