Grand Blue Season 3 Key Visual and Opening Theme Revealed
The visual and song confirm the series is returning to its beach-comedy roots with a new location and a band whose comment explicitly nods to the show's signature nudity gags.
Reporting from 1 sources: Comic Natalie.
The key visual for Grand Blue Season 3 shows seven characters walking in Palau. The opening theme is "Natsuko" by FUNKY MONKEY BΛBY'S. An advance screening with cast stage greetings will be held June 19 at Shinjuku Wald 9. Season 3 airs from July 2026.
The key visual for Grand Blue Season 3 shows seven characters walking on the southern island of Palau, a shift from the Izu diving-shop setting of earlier seasons. The opening theme is "Natsuko" by FUNKY MONKEY BΛBY'S, who said they made the song with "the feeling of going to retrieve treasures left behind in a summer of youth, friendship, and nudity." The visual was released on May 24, which is designated Scuba Diving Day in Japan because the date can be read as "Go to Sea!"
An advance screening of episodes 1 and 2 will take place June 19 at Shinjuku Wald 9 in Tokyo, with two sessions at 18:00 and 20:00. Cast members Yuma Uchida, Ryohei Kimura, and Kana Asumi will appear at both screenings; Tomoka Anzai joins the later session. Attendees receive a B2 poster. Ticket lottery sales begin May 29. Season 3 airs from July 2026.
Synthesized by Yomimono from the 1 cited source below, including Japanese-language reporting where cited, then editorially reviewed before publishing.