Diamond no Ace act II (Ace of the Diamond act II) season 2 moves into its second cour, premiering on October 11, 2026. The Seido baseball team is invited to the spring invitational tournament at the legendary Koshien Stadium.
Key Details
- Premiere date: October 11, 2026
- Production: OLM, directed by Hideaki Oba, script by Kenji Konuta, character design by Yasukazu Shoji
- Cast: Ryota Osaka returns as lead Eijun Sawamura; Daisuke Sakuma (a member of idol group Snow Man) joins the cast as Shinichiro Saotome
- Theme songs: opening by rock band GLAY, ending by music group OxT
Koshien, The Peak Of High School Baseball
For any high school baseball manga, making it to Koshien is always the biggest milestone in the story. Seido advancing to the spring invitational there marks the most dramatic stretch of act II so far.
Sources: AniTrendz, Anime News Network, Wikipedia. As of September 28, 2026.