The key visual for Season 3 of the TV anime "Grand Blue Dreaming," based on the manga serialized in "good! Afternoon" (Kodansha), has been released. It depicts the seven characters appearing in the "Palau Arc" walking on a southern island, and is a stylish visual that sets it apart from previous "Grand Blue Dreaming" releases. It was also announced that the music unit "FUNKY MONKEY BΛBY'S (Funky Monkey)" will be in charge of the opening theme (OP), "Natsuko."
FUNKY MONKEY BABY'S commented, "Youth, friendship, nudity... We created this song with the feeling of going back to retrieve treasures that we left behind in a summer long ago. 'How many more times can we experience this season in the time we have left?' We hope that the summer of 2026 will be a sparkling and beautiful time for everyone!"
A preview screening of Season 3 with a stage greeting will be held at Shinjuku Wald 9 (Shinjuku Ward, Tokyo) on June 19th. Yuma Uchida(Iori Kitahara), Ryohei Kimura (Kohei Imamura), Chika Anzai(Chisa Kotegawa), and Kana Asumi (Aina Yoshihara) will be in attendance.
"Grand Blue Dreaming" is based on a manga by Kenji Inoue, known for "Baka and Test and Summoning Beasts," with illustrations by Kimitake Yoshioka. The story follows Iori Kitahara, who moves in with his uncle by the sea when he goes to university, and meets passionate men who dedicate their youth to scuba diving and his beautiful cousin who has grown into a young woman. The comics have sold over 10 million copies in total. In Season 3, the diving shop Dolphin opens a branch in Palau, but they are short-staffed, and Nanaka asks Iori to come and help out.
The TV anime's first season aired from July to September 2018, and season 2 aired from July to September 2025. A live-action film starring actors Ryo Ryusei and Atsuhiro Inukai was released in August 2020, which also generated buzz. Season 3 will air from July on TOKYO MX, BS11, and MBS. The idol group "Mameshiba no Taigun" will perform the ending theme song, "Hadaka no Mermaid."
