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Anime series

Grand Blue Dreaming

Latest episode

S3 E12 · Back in Okinawa (B-Side)

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About Grand Blue Dreaming

Grand Blue Dreaming is a comedy anime series that premiered on TOKYO MX on July 14, 2018. It has 4 seasons and 36 episodes so far and is still airing new episodes. The latest episode, Season 3 Episode 12 "Back in Okinawa (B-Side)", aired on September 22, 2026.

A college student joins the local diving club after meeting some rowdy upperclassmen. New adventures in booze and the ocean await.

  • Comedy
  • Animation

Last updated

Episodes

36 episodes · 4 seasons

Grand Blue Dreaming Season 5 hasn’t been dated yet. See what we know. Release date →

Season 1

2018 · 12 episodes · Last episode: 8 years ago

Grand Blue Dreaming Season 1 release dates →
  1. Grand Blue Dreaming S1 E12 still E12

    12. Otori

    Finale

    For the last half of their trip, the Peek-A-Boo members arrive in Miyakojima. Everyone goes for a serious dive into the majestic sea with the exception of Iori, who couldn't obtain his license. Everything is magical with the stunning coral reef, colorful fishes and sea turtles, until the members engage in PaB-style Otori (a drinking custom of Miyakojima), which turns things into a living hell...

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    11. You Have the Wrong Idea

    "You might be the only one who can't pass the license test," Nanaka says to Iori, pointing out what he's bad at. To avoid being made fun of by Kohei and Nanaka, he practices secretly. Yet, while practice, all he thinks of is how to poison them at dinner. He avoids being pairs with Kohei and Aina and gets Chisa to promise to help him with practice. But, these interactions cause misunderstandings...

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    10. Arrival in Okinawa

    The Peek-a-Boo members arrive in Okinawa! After checking out their gorgeous vacation home, the group decides to head to the beach. In order to make sure the guys don't try to get naked, they decide to go to a popular beach with lots of visitors, where they have some wild fun on a banana boat. However, Iori loses their banana boat contest and ends up having to sleep in Nanaka and Azusa's room!

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    9. Truth or Dare

    Iori tries to setup another mixer for his friends, and wants to ask Chisa to introduce her friends so they can all play truth or dare. Nanaka and Azusa also get involved, and they all begin a vicious game of attack and defense! However, Iori doesn't have enough money for their trip. Iori and the gang head to a diving shop to buy diving gear, but find out there's still a lot they don't know.

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    8. Men's Cocktails

    The members of the diving team start working part-time jobs to pay for their trip to Okinawa. However, Iori and Kohei end up spending all their earnings on drinking. Meanwhile, Kotobuki is working hard as a bartender, and his boss lets Iori and Kohei try it out too. However, these two idiots don't know how to make cocktails, and end up creating some dangerous new drinks!

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    7. Doubles

    Iori and the others dream about going diving at a beautiful location after seeing an article on Miyakojima in a magazine. However, Tokita and Kotobuki decide the club is going to join a tennis doubles match! They explain that they're joining the match to get everyone to build trust with their diving buddy, but the real reason is to get back at the tennis club and take away their prize money!

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    6. First Buddy

    Inori and Kohei get through their exams by cheating. Meanwhile, PaB throws a welcome party for Aina, their new member. Aina was looking forward to getting a new start to college life, but discovers that no one in the club is normal! Nevertheless, the club members are serious about diving and have the new members learn basic hand signals and dive in pairs. However, Iori gets paired up with Chisa.

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    5. Too Late

    Iori and Kohei attend class in their underwear like normal, but everyone glares at them with a bloodthirsty look in their eyes! It's because they heard that Iori and Chisa are dating! Sensing their lives are in danger, Iori and Kohei offer to setup a mixer. They ask Azusa to introduce her friends, but she brings Aina Yoshiwara, the "Cakey" girl from the Izu Spring Festival!

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    4. The Male Beauty Pageant

    The Izu Spring Festival has begun! The members of Peek-a-Boo run an okonomiyaki stall with Iori, Kohei, Chisa, and Azusa helping out. Iori finds himself in a complicated situation when a misunderstanding with Azusa occurs and a rivalry with the tennis club Tinkerbell begins. When Chisa gets nervous and freezes up during the women's beauty pageant, Iori and Kohei think of a plan to cheer her on.

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    3. A New World

    Iori and Kohei don wetsuits and head to the sea! Although Iori used to be afraid of the water, he starts becoming more interested. But diving equipment is expensive! Tokita and Kotobuki decide to hold a men's beauty pageant for the Izu Spring Festival in May. The guys want to avoid being paraded around on stage, so they try to get Chisa to participate in a women's beauty pageant.

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    2. Underwater

    After a cutthroat battle with Kohei Imamura, a handsome otaku from school, Iori ends up joining the Peek-a-Boo diving club. Iori arrives home worn out from the day, but perks up when he hears about a party with a women's college. However, his cousin Nanaka won't allow him to stay out three nights in a row, so Iori tries to show her he's an independent man to get her to let him go.

  12. Grand Blue Dreaming S1 E1 still E1

    1. Deep Blue

    When Iori Kitahara heads off to college, he decides to live at his uncle's dive shop in Izu. Iori is looking forward to experiencing college life, but ends up running into a group of tough guys playing strip rock-paper-scissors. Iori gets dragged into the diving club's crazy shenanigans and ends up spending his first day in college wearing nothing but a pair of underwear.

Season 2

2025 · 12 episodes · Last episode: 1 year ago

University is back in session for Iori, and so are the booze-fueled parties! Between diving club shenanigans, a surprise from his sister, and wild tests of courage, normal college life is anything but. Dive back into the madness with Iori and his beloved crew of lively splash artists.

Grand Blue Dreaming Season 2 release dates →
  1. Grand Blue Dreaming S2 E12 still E12

    12. Now We're Even

    Finale

    Iori learns that a lot will soon change for the club.

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    11. Let's Go to an Uninhabited Island!

    The gang heads out to a camping site on an uninhabited island, only to run into some unexpected faces.

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    10. Movie Date

    Iori is asked out on a movie date, and he hears some news that complicates things.

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    9. Are You In Love?

    All sorts of misunderstandings ensue as attraction comes into the equation.

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    8. Coworkers

    Iori runs into a familiar face at his new part-time job, and this is going to complicate matters!

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    7. The Charpy Impact Test

    Iori and his class need to cooperate and do a very dangerous experiment together.

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    6. Back to the All-Girls College

    After being expelled from college, the boys devise various plans to get back into it.

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    5. First Time at a Women's University

    Iori and Kohei attend the All-Girls College Festiva, but the girls ask them to help out at the cafe.

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    4. Ticket Scramble

    Aina has a spare ticket for the Oumi Women's University Festival, and it causes all sorts of chaos.

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    3. Association

    Aina is out of control! But why?

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    2. Brother

    Shiori's here and on a mission! How will Iori handle this situation?

  12. Grand Blue Dreaming S2 E1 still E1

    1. Sister

    Iori receives a letter from his little sister back home. Note: This is still a diving anime.

Season 3

2026 · 12 episodes · Last episode: 1 month ago

Grand Blue Dreaming Season 3 release dates →
  1. Grand Blue Dreaming S3 E12 still E12

    12. Back in Okinawa (B-Side)

    Finale

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

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    11. 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?

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    10. Lottery

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

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    9. Ordeals

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

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    8. Mixer, Round 2

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

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    7. Mother

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

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    6. Assist

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

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    5. TV Special

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

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    4. The Oceans of Palau

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

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    3. Saving Private Passport

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

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    2. Homecoming

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

  12. Grand Blue Dreaming S3 E1 still E1

    1. 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.

Season 4

Grand Blue Dreaming Season 4 release dates →

Episodes for this season haven't been announced yet.

Cast & crew

  • Junya Enoki

    Junya Enoki

    Shinichirō Yamamoto (voice)

  • Takuya Eguchi

    Takuya Eguchi

    Hajime Nojima (voice)

  • Natsuki Hanae

    Natsuki Hanae

    Yū Mitarai (voice)

  • Robert Waterman

    Robert Waterman

    Kenta Fujiwara (voice)

  • Shinji Kawada

    Shinji Kawada

    Toshio Kotegawa (voice)

  • Shouta Aoi

    Shouta Aoi

    Mixed voice A (voice)

  • Jun Fukuyama

    Jun Fukuyama

    Captain Kudō (voice)

  • Inori Minase

    Inori Minase

    Mixed voice B (voice)

  • Rie Kugimiya

    Rie Kugimiya

    Mixed voice C (voice)

  • Saki Yamakita

    Saki Yamakita

    Rie Ohashi (voice)

  • Show Hayami

    Show Hayami

    Bar master (voice)

  • Yuko Gibu

    Yuko Gibu

    Kanako Iida (voice)

  • Yuka Iguchi

    Yuka Iguchi

    Kiyoko Kamio (voice)

  • Yu Kitada

    Yu Kitada

    Yokote (voice)

  • Taro Kiuchi

    Taro Kiuchi

    Anzai (voice)

Grand Blue Dreaming FAQ

When is the next episode of Grand Blue Dreaming?

A date for the next episode of Grand Blue Dreaming hasn't been announced yet. Follow Grand Blue Dreaming in the Streambay app and you'll be notified as soon as a new episode airs.

When did the latest episode of Grand Blue Dreaming come out?

The most recent episode of Grand Blue Dreaming, Season 3 Episode 12 "Back in Okinawa (B-Side)", aired on September 22, 2026.

How many seasons of Grand Blue Dreaming are there?

Grand Blue Dreaming has 4 seasons with 36 episodes in total.

When did Grand Blue Dreaming first air?

Grand Blue Dreaming first aired on TOKYO MX on July 14, 2018.

How do I get notified when new episodes of Grand Blue Dreaming are released?

Download the Streambay app, follow Grand Blue Dreaming, and you'll get a push notification the moment each new episode is released.

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