Kenji Inoue is the writer of the Grand Blue Dreaming manga, which is in serialization in Kodansha's Good! Afternoon. A fourth season of the television anime was confirmed on the official website, one day after the third season's finale aired on September 21, 2026.
Kenji Inoue writes the Grand Blue Dreaming manga, illustrated by Kimitake Yoshioka. It began serialization in Kodansha's Good! Afternoon magazine in April 2014, and Kodansha USA Publishing releases it digitally in English. Both Yomimono stories about Inoue stem from the anime adaptation rather than from new manga developments.
In June 2026, ahead of the third season, the synopsis for Episode 1 was released. The episode, titled "Unfinished Business," was set to air July 6, and the premise had the third-year PaB members planning a summer festival to finish what they had left undone. The third season debuted on July 6 on Tokyo MX and BS11, with Shinji Takamatsu returning as director and studios ZERO-G and Liber handling animation. The setting moved to Palau, the first time the anime's setting has been outside Japan. Yuma Uchida voices Iori Kitahara, Ryohei Kimura voices Kohei Imamura, and Chika Anzai voices Chisa Kotegawa.
The season's 12th and final episode aired Monday, September 21, 2026. The next day, the official website announced a fourth season, accompanied by a teaser visual. The turnaround was faster than the gap between season one in 2018 and season two in 2025.
Synthesized by Yomimono from the cited Yomimono stories below, each itself
sourced, then editorially reviewed. Every
fact links the story it came from.
2h ago
The official website for the Grand Blue Dreaming television anime announced on Tuesday that the series is getting a fourth season. The announcement came one day after the third season's 12th and final episode aired on Monday, September 21, 2026. A teaser visual accompanied the news. The third season debuted on July 6 on Tokyo MX and BS11 and is set in Palau, marking the first time the anime's setting has moved outside Japan. Shinji Takamatsu returned as director, and studios ZERO-G and Liber handled the animation. The returning voice cast includes Yuma Uchida as Iori Kitahara, Ryohei Kimura as Kohei Imamura, and Chika Anzai as Chisa Kotegawa. The Grand Blue Dreaming manga, written by Kenji Inoue and illustrated by Kimitake Yoshioka, began serialization in Kodansha's Good! Afternoon magazine in April 2014 and is published digitally in English by Kodansha USA Publishing.
Jun 22
The synopsis and scene cuts for Episode 1 of Grand Blue Season 3 have been released. The episode, titled "Unfinished Business," airs July 6. The third-year PaB members plan a summer festival to do what they left unfinished, but it is bound not to end peacefully.