Ace of Diamond Act II Second Season's Second Cour Premieres October 11 With New Cast Member and Key Visual

Second Cour Premiere Date and Broadcast Plans

The second cour of "Ace of Diamond Act II Second Season," the sequel to the 2019-2020 television anime of Yūji Terajima's "Ace of Diamond Act II" manga, will begin airing on October 11 on the six-station TV Tokyo network and other broadcasters. The new run continues the story of protagonist Eijun Sawamura, who enrolls at Seido High School, a prestigious baseball powerhouse, and aims for the top of the nation alongside teammates Kazuya Miyuki, Satoru Furuya, and Haruichi Kominato. The first cour aired from April through June 2026.

New Key Visual and Seido-Inashiro Industrial Showdown

A new key visual released alongside the announcement depicts the showdown between Seido High School and longtime rival Inashiro Industrial High School. Sawamura and Furuya are shown confronting Inashiro ace Mei Narumiya, with Miyuki, who has competed against Narumiya since their junior baseball days, appearing alongside Kominato and Yoichi Kuramochi. Narumiya is positioned before Seido as the "King," and the players are rendered in dynamic poses, framing the second cour around the rivalry series with Inashiro.

Cast Addition: Daisuke Sakuma as Shinichiro Saotome

The staff also announced that Daisuke Sakuma is joining the series as Shinichiro Saotome, expanding the cast for the second cour. The announcement was tied directly to the October 11 debut, marking one of the new character introductions prepared for the upcoming run.

Source Material and Production Context

"Ace of Diamond Act II Second Season" adapts Yūji Terajima's manga "Ace of Diamond Act II." The broader television anime series began in 2013, and "Ace of Diamond Act II" aired from 2019 to 2020 before the current sequel and its two-cour structure. The second cour's October 11 start places the show firmly within the Fall 2026 anime broadcast schedule on TV Tokyo and affiliated stations.

Other Developments

Separately, the "Hotel Inhumans" television anime's second season revealed its theme song artists and an October 4 debut, with GAN performing the opening song "Rasen" and girl group Phantom Siita performing the ending song "Sweet Pea." Elsewhere, the premiere of the "Junket Bank" TV anime, originally scheduled for October 5, has been delayed from October.