The second cours of Ace of Diamond act II -Second Season- is airing on TV Tokyo from October 11, 2026, with a lottery selling band-themed artwork through November 6.
The anime Ace of Diamond act II -Second Season- moved through a busy few months across 2026, moving from collaborations to broadcasting. It launched a JR Tokai Oshi Tabi campaign on the Tokaido Shinkansen that ran from August 3 to September 30. Passengers could unlock voice messages from six characters, a random fan, and a smartphone wallpaper at the Koshien History Museum. Then in October, a special program paired the series with former NPB and MLB slugger Hideki Matsui, with Ryota Osaka, the voice of Eijun Sawamura, as MC.
Production facts settled before the premiere. GLAY performs the opening theme "NEVER SAY NEVER AGAIN". The duo OxT performs the ending theme "ROAD TO BE BLUE". The second cours premieres October 11 on TV Tokyo and its affiliated channels, and on AT-X, with Netflix streaming in Japan after broadcast. A fall anime guide lists director Hideaki Oba and places the story at the West Tokyo Tournament final against Inashiro Industrial, airing from October 11 at 17:30.
Cast news also landed. Masayoshi Oishi and Snow Man's Daisuke Sakuma co-star, with Sakuma voicing Shinichiro Saotome. Oishi said on X that his dream came true, referring to a March post wishing to work on the same anime as Sakuma. The most recent story moves into merchandising: the K2C Lottery opened October 16 at 12:00 on the K2C LUCK site, with draws at 770 yen through November 6. New band-themed artwork shows Eijun Sawamura, Satoru Furuya, Kazuya Miyuki, Yoichi Kuramochi, Haruichi Kominato and Koushu Okumura holding instruments, used across live T-shirts, face towels, acrylic stands, keychains and can badges.
Synthesized by Yomimono from the cited Yomimono stories below, each itself
sourced, then editorially reviewed. Every
fact links the story it came from.
Oct 17
The K2C Lottery for the Ace of Diamond act II -Second Season- anime opened at 12:00 on October 16, 2026 on the K2C LUCK site, with draws at 770 yen each through November 6. New band-themed artwork shows Eijun Sawamura, Satoru Furuya, Kazuya Miyuki, Yoichi Kuramochi, Haruichi Kominato and Koushu Okumura holding instruments, used across live T-shirts, face towels, acrylic stands, keychains and can badges.
Oct 9
A fall anime guide from ASCII.jp introduces five titles. Ace of Diamond act II -Second Season- opens its West Tokyo Tournament final against Inashiro Industrial, and airs on TV Tokyo's six-station network from October 11 at 17:30. Keroro Gunsou☆ and From Far Away appear in the same installment, alongside two other titles. The entry lists the Ace of Diamond staff and cast, including director Hideaki Oba.
Oct 1
A special program pairing Ace of Diamond act II -Second Season- with former NPB and MLB slugger Hideki Matsui will air October 4, 2026, ahead of the anime's second cour. Matsui sits for an interview, watches the series, and discusses its high school baseball and Koshien scenes. Ryota Osaka, who voices Eijun Sawamura, is the MC. The second cour begins October 11, 2026.
Sep 15
The staff for Ace of Diamond Act II Second Season released the main promotional video and announced the theme songs for the anime's second cours on Tuesday. GLAY performs the opening theme "NEVER SAY NEVER AGAIN," and the duo OxT, made up of Masayoshi Oishi and Tom-H@ck, performs the ending theme "ROAD TO BE BLUE." The second cours premieres October 11 on TV Tokyo and its affiliated channels, and on AT-X, with Netflix streaming in Japan after broadcast.
Sep 9
Masayoshi Oishi and Snow Man's Daisuke Sakuma will co-star in the TV anime Ace of Diamond act II -Second Season-, airing in October. Oishi shared on X that his dream came true, recalling his March post wishing to work on the same anime as Sakuma. Sakuma voices Shinichiro Saotome.
Aug 11
The Ace of Diamond act II anime is collaborating with JR Tokai's Oshi Tabi campaign from August 3 to September 30. Passengers on the Tokaido Shinkansen can access original voice messages from six characters, receive a random original fan, and get a smartphone wallpaper at the Koshien History Museum.