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CinemaOS
CinemaOSAnime · 2026 · TV · 12 eps
Grand Blue Dreaming Season 3
82%(45,762)ComedySlice of LifeSports

Iori's college shenanigans head overseas! Just as he's finally starting to get the hang of university life, crashing at his uncle's dive shop while balancing the booze-fueled antics of his diving club, Iori's cousin enlists him to help run a new dive shop in Palau. Between crystal-clear dives and his diving group that can't resist partying it up and stripping down, Iori's in for a wild summer.

StudioZero-G, Saber Works

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Grand Blue Dreaming Season 3
Official trailer

Grand Blue Dreaming Season 3

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Format
TV
Episodes
12
Status
Finished
Season
Summer 2026
Duration
24 min
Source
Manga

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Episodes

12 available
12 Episodes
Unfinished Business
Ep 13.5

Unfinished Business

Summer is coming to an end, and the older kids at the club want to do the things they still have left to do.

Homecoming
Ep 27.3

Homecoming

Iori and the gang head to his family home to grab his passport for the upcoming trip.

Saving Private Passport
Ep 33.5

Saving Private Passport

Iori must navigate Shiori, the tourists, and the stalker on the loose to get his hands on his passport.

The Oceans of Palau
Ep 43.5

The Oceans of Palau

The group eagerly arrives in Palau, where someone they know well is waiting for them.

TV Special
Ep 53.5

TV Special

A TV crew has arrived to film a special at Dolphin, and the gang gets roped into it!

Assist
Ep 61.4

Assist

Kohei has figured out that Aina is into Iori and decides to help her in a way only he can.

Mother
Ep 73.5

Mother

Tensions between Chisa and her mom come to a head as they clash over her life goals.

Mixer, Round 2
Ep 87.3

Mixer, Round 2

Back home, Iori gets caught up in the scumbros' shenanigans again, and ends up having to set up a mixer.

Ordeals
Ep 910.0

Ordeals

The boys have run into several issues over the summer, and they need the collective think tank to resolve them!

Lottery
Ep 107.3

Lottery

Iori has a craving for his favorite food, and he also receives a lottery ticket.

Back in Okinawa (A-Side)
Ep 113.5

Back in Okinawa (A-Side)

Aina wants to stop Iori and Chisa from going on a trip, and enlists Kohei's help. Will she be successful?

Back in Okinawa (B-Side)
Ep 12

Back in Okinawa (B-Side)

While Iori and Chisa enjoyed their first day in Okinawa, there was chaos unfolding behind the scenes!

Voice cast

Characters

Chisa Kotegawa
main

Chisa Kotegawa

Iori Kitahara
main

Iori Kitahara

Kouhei Imamura
main

Kouhei Imamura

Aina Yoshiwara
main

Aina Yoshiwara

Azusa Hamaoka
supporting

Azusa Hamaoka

Shiori Kitahara
supporting

Shiori Kitahara

Shinji Tokita
supporting

Shinji Tokita

Ryuujirou Kotobuki
supporting

Ryuujirou Kotobuki

Nanaka Kotegawa
supporting

Nanaka Kotegawa

Naomi Otoya
supporting

Naomi Otoya

Yuu Mitarai
supporting

Yuu Mitarai

Rie Oohashi
supporting

Rie Oohashi

Shinichirou Yamamoto
supporting

Shinichirou Yamamoto

Toshio Kotegawa
supporting

Toshio Kotegawa

Hajime Nojima
supporting

Hajime Nojima

Kudou
supporting

Kudou

Kaya Mizuki
supporting

Kaya Mizuki

Kenta Fujiwara
supporting

Kenta Fujiwara

Sakurako Busujima
supporting

Sakurako Busujima

Sayaka Kotegawa
supporting

Sayaka Kotegawa

Ushironomiya
supporting

Ushironomiya

Carina
supporting

Carina

Kitahara Chichi
supporting

Kitahara Chichi

Yuuichi Ikegoshi
supporting

Yuuichi Ikegoshi

Chief
supporting

Chief

Same universe

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