When Iori Kitahara heads off to college, he decides to live at his uncle's dive shop in Izu named Grand Blue. Iori is looking forward to experiencing college life amidst the roar of the waves, the blazing sun, and his cute cousin who lives with him! However, Iori runs into a group of tough guys playing strip rock-paper-scissors, and ends up joining Peek-a-Boo, the college's diving club!
| Title | Air Date | Duration | ||
|---|---|---|---|---|
| Season 1 | Episode 1 | Deep Blue | 2018-07-13 | 30 min |
| Season 1 | Episode 2 | Underwater | 2018-07-20 | 30 min |
| Season 1 | Episode 3 | A New World | 2018-07-27 | 30 min |
| Season 1 | Episode 4 | The Male Beauty Pageant | 2018-08-03 | 30 min |
| Season 1 | Episode 5 | Too Late | 2018-08-10 | 30 min |
| Season 1 | Episode 6 | First Buddy | 2018-08-17 | 30 min |
| Season 1 | Episode 7 | Doubles | 2018-08-24 | 30 min |
| Season 1 | Episode 8 | Men's Cocktails | 2018-08-31 | 30 min |
| Season 1 | Episode 9 | Shopping | 2018-09-07 | 30 min |
| Season 1 | Episode 10 | Arrival in Okinawa | 2018-09-14 | 30 min |
| Season 1 | Episode 11 | You Have the Wrong Idea | 2018-09-21 | 30 min |
| Season 1 | Episode 12 | Otori | 2018-09-28 | 30 min |
| Production | Kazuaki Takahashi | Producer |
| Sound | Manual of Errors Artists | Original Music Composer |
| Production | Toshihiro Suzuki | Producer |
| Crew | Ayuko Harada | Special Effects |
| Production | Toshihiro Maeda | Producer |
| Sound | Noriko Izumo | Sound Effects |
| Art | Minoru Akiba | Art Direction |
| Editing | Masaki Utsunomiya | Editor |
| Camera | Hideki Imaizumi | Director of Photography |
| Art | Hiroshi Ogawa | Prop Designer |
| Writing | Kenji Inoue | Comic Book |
| Sound | Shinji Takamatsu | Sound Director |
| Visual Effects | Aiko Matsuyama | Color Designer |
| Visual Effects | Hideoki Kusama | Character Designer |
| Visual Effects | Kimitake Yoshioka | Character Designer |
| Visual Effects | Hideoki Kusama | Supervising Animation Director |
| Visual Effects | Yoichi Ueda | Supervising Animation Director |
| Writing | Shinji Takamatsu | Series Composition |
| Art | Kimitake Yoshioka | Original Series Design |
| Writing | Kimitake Yoshioka | Comic Book |
| Directing | Shinji Takamatsu | Series Director |
