Trivia / Grand Blue

• "Do It Yourself" Theme Tune:
  • The ending song "Konpeki no al Fine" is sung by a group called "Izu no Kaze", comprised of Yūma Uchida (Iori), Ryōhei Kimura (Kouhei), Hiroki Yasumoto (Shinji) and Katsuyuki Konishi (Ryuujirou).
  • Episode 11 features another version of the ending sung by Nana Mizuki (Kaya Mizuki, who is the one who sings the ending theme In-Universe).
• Real-Life Relative: Iori is voiced by Yūma Uchida, while Nanaka is voiced by his real-life older sister Maaya Uchida.
• What Could Have Been: There might not have been an Animated Adaptation at all; back in 2017, it was implied on Twitter by series creator Kenji Inoue that due to the heavy drinking aspect and certain characters being under-aged in the Manga^* Japan's legal age to drink is 20, whereas the first-years are 18-years old, it was going to be impossible for an Anime of Grand Blue to occur. While it ultimately was adapted, all characters who do drink are forced to be at least 20-years old, so that Moral Guardians wouldn't make a fuss about anyone drinking under-age.

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