Grand Blue Season 2

Three months have passed since Iori Kitahara began living above Grand Blue, his uncle's scuba diving shop, and joined his university's Diving Club. Alongside the other members, he has spent his days drinking and recklessly having fun. However, when Iori's sister, Shiori, hears about his behavior, she decides to take matters into her own hands—and bring him back home to make him take over their family's inn.

Despite her best efforts, Shiori temporarily gives up as she sees how Iori has grown attached to Grand Blue and his friends. As Iori and the rest of the Diving Club continue to party like there is no tomorrow, they end up in all kinds of bizarrely amusing situations, still somehow managing to hone their scuba diving skills!

[Written by MAL Rewrite]

Kitahara, Iori Main

Uchida, Yuuma Japanese

Kotegawa, Chisa Main

Anzai, Chika Japanese

Imamura, Kouhei Main

Kimura, Ryouhei Japanese

Yoshiwara, Aina Main

Asumi, Kana Japanese

Hamaoka, Azusa Supporting

Yukinari, Toa Japanese

Busujima, Sakurako Supporting

Yamane, Aya Japanese

Kotegawa, Nanaka Supporting

Uchida, Maaya Japanese

Tokita, Shinji Supporting

Yasumoto, Hiroki Japanese

Kotobuki, Ryuujirou Supporting

Konishi, Katsuyuki Japanese

Kitahara, Shiori Supporting

Morohoshi, Sumire Japanese

Kurashima, Youichi Producer

Yonezawa, Akira Producer

Kachi, Hideyuki Producer, Planning

Takahashi, Kazuaki Producer

Reviews

Sep 22, 2025

Stark700

Recommended

I've always had a soft spot for Grand Blue. It demonstrates the principle of having a fun group of characters enjoying their lives in a sitcom-like format of storytelling. After so many years, it's fitting this anime returns in the Summer season, a season so well suited for this show orchestrated by its colorful and over-eccentic cast.

Iori Kitahara's return creates the same atmospheric energy of the previous season. We're not left out from one bit of this anime's crazy antics, courtsey of the Peek-a-Boo club. You remember them don't you? It's a collection of college guys and girls gathered together to enjoy life of drinking ... and partying than diving. It's the foundation of this anime's loose plot, where every episode shows the life style of open minded college students. Forget school and academics, this anime ditches the classroom doors and goes straight into the adult world.

There's a reason this anime revolves around college age characters than teenagers. It had to abide by the age limit so it artificially boosts the characters' ages. It works because drinking and partying tends to happen far more frequently during the early stages of adult life. Practically every character in this anime has a love for drinking in some way or form. Even when it's used to serve as a distraction, drinking is considered the common norm where it would feel unusual if a character didn't drink. This also extends the fan service because all the characters are well-built. The male characters have lean and muscular bodies while the female cast are well-endowed with athletic looks. Don't believe me? Just watch the OP song and see you for yourself. It's up there as a candidate for the most fan servicy OP song of this season.

Still, this season does love itself for creating misunderstandings and giving characters chances to be themselves. Some of them are tested in games while others are paired up through certain circumstances. Chisa seems to be the main culprit whenever she gets involved with Iori. The whole season has them flirtnig with idea of them getting together, although it's not depicted as romance. It's more of a crowd pleaser and baiting to see who can really make the first move. Fans should know this anime loves having fun with itself than creating tearjerking or dramatic moments between character pairs. Some characters in fact have too much fun and power to themselves. An example is Sakurako Busujima, a new character who has developed a bizarre relationship with Iori. Throughout the series, he is her primary target for bullying, although it's mostly deconstructed with light humor. She serves somewhat as a somewhat rival compared to Chisa, the ever serious and level headed girl of the Peek-a-Boo club. Watching their character rivalry draws out Chisa's insecure side where she unintentionally says things she wasn't prepared for. Her presence is felt throughout this season and she can be designated as a breakout character.

The rest of the cast aren't much different after all these years. Kouhei returns with his love for girls and anime. Aina is still the same shy person who holds feelings towards Iori. Others such as Nanaka and Azusa plays their roles to serve as more mature characters for the club. It's really the cast that reminds us what being an adult is about in this show, even if not all of them are responsible. Perhaps that's an understatement. Hardly any of them are responsible and often gets sucked into the ectasy of their own personal interests. I mean, ask yourself, how many times has Kohei tried to get a girlfriend? Or Iori trying to hit on girls? These young adults behave like how you'd expect them to in this social age, where life opens to unlimited opportunities. Grand Blue Season 2 takes those opportunities and have way too much fun with them.

Reviewer’s Rating: 8

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Sep 23, 2025

thestarsailor

Mixed Feelings

The most damning thing I can say is that the ED is funnier than the rest of the show. Or in other words the first season could pretty consistently make me laugh, while the second season couldn't. It seems silly to reduce humor to a formula, but comparing the two seasons, the first one had more of the ridiculous, almost Attack on Titan-like distorted faces for comedic effect and had more jokes based on the premise of this being a normal college where a bunch of ridiculous shit happens. This season doesn't have those faces and focuses more on the relationships between the characters which ... weren't ever really strong or well-defined when they're really all drinking buddies. The first season had more fun with that than this season has with so many episodes being variations of Iori having to hide whether he's actually dating a girl or not. I guess this is more of a hang-out, but that sounds like apologetics for the lack of jokes.

Reviewer’s Rating: 6

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Oct 3, 2025

Prashantttt

Not Recommended

Where Grand Blue Season 1 was pure fun, Season 2 completely shifts toward the romance side. The problem? Instead of bringing something new, the show mostly recycles the same sexual/ecchi comedy about asses and melons yeah, the same jokes again and again. Grand Blue was famous for wild, over-the-top comedy, but here it feels watered down and repetitive.

Like I said, Season 2 is stuck in romance mode. From the first episode to the last, all they do is throw every single girl at our MC, Lori. Some by mistake, some by misunderstanding, and suddenly every girl is chasing or colliding with the MC. It’s not ... romance, it’s recycled drama disguised as romance. There’s no depth, no actual development, just dumb filler situations designed to drag the story. Watching it feels more like punishment than entertainment.

basically S2 is mostly based on OUR MAIN character Lori , almost he got the most of the screen time in the show , every incident is around him .

Characters

Lori – The supposed MC. Honestly, in Season 2 he doesn’t even feel like the main character. He’s just treated like a punching bag. Every female character either abuses him or makes him look like trash, all in the name of “comedy.” His character is not fun anymore—it’s pathetic.

Other characters (Chisa, Aina, Kouhei, etc.) – Their role this time is basically just to support Lori. Nothing new, nothing exciting.

we also have some new characters in S2

(Sakurako) – Easily the most annoying addition. She’s a tsundere, but instead of being interesting, she’s just a straight-up bitch. Honestly, she should sacrifice herself to Truck-kun and save the audience the pain.

The gay character – His presence or absence makes zero difference. He exists, that’s it.


Overall

Grand Blue Season 2 is all about stupid lazy repetitive romance comdey, The humor is stale, the story is boring, and the characters feel wasted.

Reviewer’s Rating: 2

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