Grand Blue Season 4 Announced With Teaser Visual

Grand Blue Season 4 anime was officially announced immediately after the third season’s finale finished airing in Japan. Shinji Takamatsu returned to direct at studios ZERO-G and Liber.

The new visual features Chisa Kotegawa, Aina Yoshiwara and Sakurako Busujima in swimsuits, with a photograph of Iori pierced by a knife. It teases a new romantic rivalry, as shown in the final episode. check out the visual below.

The anime returned with Season 2 over 6 years after the ending of Season 1. The returning voice cast included Yuma Uchida (Iori Kitahara), Ryohei Kimura (Kohei Imamura), Chika Anzai (Chisa Kotegawa), and others reprising their roles.

Shinji Takamatsu returned as director, scriptwriter, and sound director, with Hideoki Kusama handling character design alongside chief animation director Yoichi Ueda. Studios ZERO-G and Liber are in charge of the animation, with Reiko Kasuga overseeing the art direction and Yukari Hashimoto composing the music. Season 3 was announced immediately after the finale and ran from July 6 until September 21, 2026.

Grand Blue Dreaming (commonly known as Grand Blue) is a manga series created by writer Kenji Inoue and illustrator Kimitake Yoshioka. It began serialization in Kodansha’s Good! Afternoon magazine in April 2014. The series received a television anime adaptation by Zero-G, which aired from July to September 2018, and was later adapted into a live-action film released in August 2020.

Kodansha also publishes the manga in English. The story follows Iori Kitahara, who moves to a coastal town after finishing high school and starts working at his uncle’s diving shop. Along the way, he becomes involved in both scuba diving and the unexpected, alcohol-filled college life, forming friendships in an extremely chaotic enviornment.

Source: Grand Blue Official X
©Kenji Inoue, Kimitake Yoshioka, Kodansha/Grand Blue Production Committee