The second season of the Grand Blue Dreaming anime series was produced by Zero-G and Liber. It was aired from July 8 to September 23, 2025.
Production and release In September 2024, a second season was announced, with Takamatsu returning as director and scriptwriter, and Liber joining Zero-G for animation production. The season aired from July 8 to September 23, 2025, on Tokyo MX and other networks. The opening theme song is , performed by Shōnan no Kaze featuring Atarashii Gakko!, while the ending theme song is , performed by Seamo featuring May'n. Crunchyroll is streaming the second season. Tropics Entertainment licensed the series in Southeast Asia for streaming on Tropics Anime Asia YouTube channel.
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