Ace of the Diamond: Act II -Second Season-
Seido High's star pitcher, Eijun Sawamura, has finally earned the prized ace uniform, but this summer is his last shot to lead the school's baseball team to victory. He and his stoic teammates Furuya, who battles injury, and Miyuki, who anchors the team as captain, will hold the rope through every curve ball that comes their way in the tournament.
Season 4 Lore Primer
Key plot threads, lore context, and character stakes you need to remember before diving into this season.
- Eijun Sawamura is a brash left-handed pitcher scouted for his potential.
- Eijun Sawamura joins the baseball powerhouse Seido High.
- Eijun Sawamura aims to become the undisputed ace of the team.
- The series centers around the Seido High baseball team and its members.
Season overview
Seido High's star pitcher, Eijun Sawamura, has finally earned the prized ace uniform, but this summer is his last shot to lead the school's baseball team to victory. He and his stoic teammates Furuya, who battles injury, and Miyuki, who anchors the team as captain, will hold the rope through every curve ball that comes their way in the tournament.
Episode Guide
Season 4 Progress Shield
Up Ahead
Apr 5, 2026 · 24 min
Seido takes on Norikane High as Sawamura struggles to live up to the weight of the team's ace number.
For the Team
Apr 12, 2026 · 24 min
Ichidaisan High faces off against Yakushi, with Amahisa revealing a new pitch in his showdown with Raichi.
The Path of the Victor
Apr 19, 2026 · 24 min
The showdown between Amahisa and Raichi kicks off the second half of the Yakushi-Ichidaisan match.
Roar
Apr 26, 2026 · 24 min
Four quarterfinals matches play out as the semifinalists are decided.
Something Off
May 3, 2026 · 24 min
Potential injuries plague both Seido and Ichidaisan, while Sawamura tries out new pitches.
The Unveiling
May 10, 2026 · 24 min
Amahisa and Sawamura reveal a few new tricks to start the Ichidaisan-Seido match.
What's Built Up
May 17, 2026 · 24 min
Ichidaisan and Seido continue to clash with no ground to spare in a tight match between ace pitchers.
The Mentality of the Ace
May 24, 2026 · 24 min
The pressure builds on Sawamura as the Ichidaisan team brings out all its tricks to break the stalemate.
High Voltage
May 31, 2026 · 24 min
The pitchers' duel continues as Seido struggles to make up for lost ground.
My Fight
Jun 7, 2026 · 24 min
As late innings roll around, Seido seeks to break through Amahisa's ironclad pitching.
As a Partner
Jun 14, 2026 · 24 min
One run behind in the eighth inning, the heart of Seido's order comes to the plate with a man on third.
The Next Stage
Jun 21, 2026 · 24 min
After a dramatic turning point, Sawamura tries to get his last three outs of the game.
An Endless Road
Jun 28, 2026 · 24 min
With the finals approaching, the players wrestle with the psychological elements of the game.
The Night Before the Finals
Oct 11, 2026 · 24 min
Seido and Inashiro prepare for the game that will take one of them to Koshien.
Full Throttle
Oct 18, 2026 · 24 min
The finals kick off as first innings from Narumiya and Furuya set the tone.