Grand Blue Dreaming Season 3 has received a teaser visual and a July 2026 broadcast premiere window.
Three new cast members were also revealed: Sayaka Ohara as Sayaka Kotegawa, Asami Seto as Chief (of the Palau diving shop Dolphin), and Aya Suzuki as Maki.
Grand Blue Dreaming is based on the Kodansha-published manga written by Kenji Inoue and drawn by Kimitake Yoshioka. Kodansha USA describes the manga as such:
After moving out on his own to a seaside town, Iori Kitahara makes a college debut he never anticipated. A new chapter of his life unfolds, full of diving with beautiful girls and shenanigans with a gaggle of lovable bastards! Idiot-expert Kenji Inoue and au naturel authority Kimitake Yoshioka bring you a glorious college tale filled with booze-fueled antics!
The anime’s first season aired in 2018. Season 2 followed in 2025.
The manga started serialization in Good! Afternoon in 2014 and will release its 26th volume on April 7, 2026 (JST).
Staff (reprising unless stated otherwise)
• Director, scriptwriter, and sound director: Shinji Takamatsu
• Animation production: Zero-g
• Animation production: Saber Works (new)
Cast
• Yuma Uchida as Iori Kitahara
• Chika Anzai as Chisa Kotegawa
• Maya Uchida as Nanaka Kotegawa
• Ryohei Kimura as Kohei Imamura
• Hiroki Yasumoto as Shinji Tokita
• Katsuyuki Konishi as Ryujiro Kotobuki
• Toa Yukinari as Azusa Hamaoka
• Kana Asumi as Aina Yoshiwara
• Aya Yamane as Sakurako Busujima
Source: @gb_anime