The Snack Anzai Livestream event for the Grand Blue (Grand Blue Dreaming) anime series announced three new supporting cast, teaser visual (pictured) for its third season on Wednesday. The anime series, adapting Kenji Inoue's gag-comedy manga will premiere in July 2026.

Cast
Sayaka Kotegawa: Sayaka Ohara (Horimiya)
Chief: Asami Seto (Vigilante: Boku no Hero Academia Illegals)
Maki: Aya Suzaki (Kimi wa Houkago Insomnia)

Produced by Zero-G, the first season aired in 12 episodes in Summer 2018. The second season premiered in Summer 2025. Amazon Prime Video streamed the first season, with Crunchyroll simulcasted the second season with subtitles in multiple languages.

Inoue and Kimitake Yoshioka began serializing the manga in good! Afternoon magazine in April 2014. Kodansha published the 25th volume in October 2025, with the 26th volume planned for an April 7 release. Grand Blue has a cumulative 10 million copies of its volumes in print.

Kodansha USA licensed the manga in English in November 2017 and released the 23rd volume in December 2025.

Source: Comic Natalie