📖 SYNOPSIS
Loud, stubborn, and impossible to ignore, pitcher Eijun Sawamura loses his last middle school baseball game on a wild pitch — but he doesn't wallow; instead, he gets scouted by one of Tokyo's elite baseball programs. He shows up to Seidou High School ready to declare himself the future ace, only to find out the team is stacked with guys who are just as good or better than him, including Satoru Furuya, a quiet first-year whose fastball is genuinely terrifying. What makes this 75-episode TV series work is that it doesn't hand Eijun anything. He earns every inch of progress through practice, failure, and sheer stubbornness, and the show takes its time letting that unfold. The baseball itself is detailed — you'll learn about pitch types, batting strategy, and tournament structure almost by accident because it's woven into matches that genuinely keep you tense. Production I.G and Madhouse handle the animation, and the game sequences have real weight to them. The team dynamics carry a lot of the emotional load too. It's not just Eijun's story; the upperclassmen, the coaching staff, the bench players — they all get moments that land. If you liked the slow-burn team building in Aoashi or the grounded sports drama of Cross Game, this hits a similar nerve but with more raw competitive energy. It's a long watch, but the kind where you look up and realize you've burned through fifteen episodes on a Tuesday night.
✨ MUST WATCH IF...
❌ SKIP IF...
🎬 EPISODE GUIDE
MANGA BRIDGE
This season covers Chapters 1-167 of the manga. Continue reading from Chapter 168.

🎭 CHARACTERS
Kazuya Miyuki
Seidou's 2nd-year catcher; strategic, witty, and skilled, though his cheeky attitude can be off-putting.
Portrayed by Sakurai Takahiro
Eijun Sawamura
Seidou High's spirited southpaw ace, Sawamura Eijun, boasts unique pitches but struggles with control.
Portrayed by Oosaka Ryouta
Haruichi Kominato
Talented second baseman with pinpoint batting and amazing baseball sense, though lacking stamina; rivals his brother.
Portrayed by Hanae Natsuki
Satoru Furuya
A powerful, yet stamina-challenged right-handed pitcher, Satoru Furuya rivals Sawamura in Ace of Diamond.
Portrayed by Shimazaki Nobunaga
Ace of Diamond Series

TV · 2015 · Production I.G
Ace of Diamond: Second Season
Following their National Tournament experience, Seidou High's baseball team faces a challenging new season, striving for victory with a revamped roster and the pressure of becoming the team's ace.

TV · 2019 · Madhouse
Ace of Diamond Act II
Following their previous season's conclusion, Seidou High's baseball team strives for victory at Koshien, facing familiar rivals and new challenges in their pursuit of the championship.

TV · 2026 · OLM
Ace of Diamond Act II Season 2
Following Seidou High's journey, the team strives to reach the Koshien, facing formidable rivals and personal challenges in their pursuit of baseball glory.
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