Next Episode of Grand Blue is
Season 3 / Episode 12 and airs on 21 September 2026 17:25
Iori Kitahara is a college student living along in a coastal city who meets scuba-diving and fun-loving upperclassmen.Among the seaside town of Izu's ocean waves and rays of shining sun, Iori Kitahara is just beginning his freshman year at Izu University. As he moves into his uncle's scuba diving shop, Grand Blue, he eagerly anticipates his dream college life, filled with beautiful girls and good friends.
But things don't exactly go according to plan. Upon entering the shop, he encounters a group of rowdy, naked upperclassmen, who immediately coerce him into participating in their alcoholic activities. Though unwilling at first, Iori quickly gives in and becomes the heart and soul of the party. Unfortunately, this earns him the scorn of his cousin, Chisa Kotegawa, who walks in at precisely the wrong time. Undeterred, Iori still vows to realize his ideal college life, but will things go according to plan this time, or will his situation take yet another dive?
Iori and the gang head to his family home to grab his passport for the upcoming trip.
Iori must navigate Shiori, the tourists, and the stalker on the loose to get his hands on his passport.
The group eagerly arrives in Palau, where someone they know well is waiting for them.
A TV crew has arrived to film a special at Dolphin, and the gang gets roped into it!
Kohei has figured out that Aina is into Iori and decides to help her in a way only he can.
Tensions between Chisa and her mom come to a head as they clash over her life goals.
Back home, Iori gets caught up in the scumbros' shenanigans again, and ends up having to set up a mixer.
The boys have run into several issues over the summer, and they need the collective think tank to resolve them!
Iori has a craving for his favorite food, and he also receives a lottery ticket.
Aina wants to stop Iori and Chisa from going on a trip, and enlists Kohei's help. Will she be successful?
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