Ace of Diamond Act II -Second Season-

Last updated: 10 November 2026

About Ace of Diamond Act II -Second Season-

Ace of Diamond adapts Yuji Terajima's baseball manga from Weekly Shonen Magazine: Ace of Diamond (2006 to 2015) and Ace of Diamond Act II (2015 to 2022). The anime began in 2013, produced by Madhouse and Production I.G, and Act II first aired in 2019 to 2020. The continuation, Act II -Second Season-, moved to studio OLM. Hideaki Oba directs, with Kenji Konuta on series composition, Yasukazu Shoji designing the characters and Hajime Hyakkoku composing the music. Ryota Osaka, Nobunaga Shimazaki and Takahiro Sakurai lead the returning cast as Sawamura, Furuya and Miyuki. A sequel was first announced in 2024, the first cour aired in spring 2026, and the second cour opened on 11 October 2026 with a new opening by GLAY and a new ending by OxT. Crunchyroll streams the new cour and the complete earlier series, making this the easiest the franchise has ever been to catch up on.

Ace of Diamond Act II -Second Season- is a TV anime from 2026, first released in Fall 2026. It belongs to the Sports genre and is listed as currently airing. The summary above is written by the AnimeYug team in our own words.

Story & Plot

Eijun Sawamura came to Seido High, a Tokyo baseball powerhouse, to follow catcher Kazuya Miyuki and become the team's ace. Years on, he is still chasing that title, sharing the mound with the harder-throwing Satoru Furuya and learning, game by game, what an ace actually carries.

Act II -Second Season- follows Seido through the spring invitational at Koshien and into the West Tokyo summer tournament, the road that decides who goes back to Koshien in the summer. Every round raises the price: rival schools know Seido's pitchers now, and at the end of the road waits Inashiro Industrial and its ace, Mei Narumiya, the pitcher who has beaten Seido when it mattered most.

This is a team story as much as Sawamura's. Miyuki's game-calling, Kuramochi's speed, Haruichi's bat and a dugout full of players fighting for nine starting spots all get their moments, because at Seido, nobody's place is safe.

Story Arcs & Episode Guide

The Ace of Diamond Act II -Second Season- anime is split into story sagas. Here is every saga in order, with its episodes and years.

Why Watch Ace of Diamond Act II -Second Season-

• Third in AniGems' combined Fall 2026 ranking, and in CBR's fall top ten
• The franchise's first new season in six years
• Produced by OLM, directed by Hideaki Oba
• Crunchyroll streams the new cour and all earlier seasons
• Second cour opening by GLAY, ending by OxT

Who Is It For?

Ace of Diamond suits viewers who like long-form sports stories where progress is earned one practice at a time. Sawamura does not win because he is chosen. He wins innings, loses them, and grows. If you are new, the earlier seasons are all on Crunchyroll, and this season is written to welcome you back or bring you in.

Voice Actors

The Japanese voices behind the main characters of Ace of Diamond Act II -Second Season-.

• Eijun SawamuraSeido's left-handed pitcher, still chasing the ace number
  Japanese voiceRyota Osaka
• Satoru FuruyaSeido's power pitcher and Sawamura's great rival
  Japanese voiceNobunaga Shimazaki
• Kazuya MiyukiSeido's captain and catcher, the brain of the team
  Japanese voiceTakahiro Sakurai
• Yoichi KuramochiSeido's shortstop and leadoff runner
  Japanese voiceShintaro Asanuma
• Haruichi KominatoA gifted young batter with a wooden bat
  Japanese voiceNatsuki Hanae
• Mei NarumiyaInashiro Industrial's ace, Seido's biggest obstacle
  Japanese voiceYuki Kaji
• Norifumi KawakamiSeido's sidearm relief pitcher
  Japanese voiceHiro Shimono
• Shinji KanemaruSeido's third baseman
  Japanese voiceYoshitsugu Matsuoka
• Koshu OkumuraA first-year catcher with his eyes on Miyuki's spot
  Japanese voiceYuma Uchida

Staff & Production

Original Creator

Yuji Terajima

Director

Hideaki Oba

Series Composition

Kenji Konuta

Character Design

Yasukazu Shoji

Music

Hajime Hyakkoku

Animation Studio

OLM

Manga & Source Material

Ace of Diamond adapts Yuji Terajima's manga from Kodansha's Weekly Shonen Magazine. The original series ran from 2006 to 2015, and Ace of Diamond Act II continued it from 2015 to 2022. It is one of the most respected baseball manga ever made, known for treating every position and every player on the roster seriously.

• Written and drawn by Yuji Terajima
• Ace of Diamond ran in Weekly Shonen Magazine from 2006 to 2015
• Ace of Diamond Act II ran from 2015 to 2022
• Earlier anime seasons were produced by Madhouse and Production I.G
• The Second Season moved production to OLM

Series Timeline

1. 2013 to 2016

   The first Ace of Diamond anime airs, covering Sawamura's arrival at Seido.

2. 2019 to 2020

   Ace of Diamond Act II airs, following the new generation of the team.

3. 2024

   A sequel to Act II is announced.

4. April to June 2026

   Act II -Second Season- cour 1 airs, including the spring invitational.

5. 11 October 2026

   Cour 2 begins on the TV Tokyo network, with Crunchyroll simulcasting.

Release Schedule

Cour 2 premiere

11 October 2026, 5:30 p.m. JST

Broadcast

TV Tokyo network, Sundays; AT-X at 9:00 p.m. JST

Streaming

Crunchyroll simulcast; Netflix in Japan

Episodes

Full season count not announced

Details as of 10 November 2026. Episode 19 airs on Sunday 15 November 2026. Crunchyroll also streams all earlier Ace of Diamond seasons.

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