📖 SYNOPSIS
After relocating to a seaside town for college, Iori Kitahara's biggest accomplishment so far is learning how to drink grain alcohol without flinching. That's basically the premise of Grand Blue, and Season 2 picks up right where things left off — with Iori back at his uncle's scuba diving shop after a trip to Okinawa, surrounded by the same group of muscular, perpetually shirtless guys who treat every gathering like a frat party that happens to be near the ocean. This time around, his sister Shiori shows up and tries to drag him home after hearing about his lifestyle, which goes about as well as you'd expect when the Peek a Boo Diving Club is involved.
The appeal here is honestly pretty simple: it's one of the funniest anime about doing absolutely nothing productive in college. The diving stuff is there, and it's surprisingly genuine when it comes up, but most of the comedy is just these characters being disasters together. The facial expressions alone are worth it — Zero-G and Liber lean hard into the exaggerated reaction shots that made the manga so popular.
If you liked the chaotic energy of KonoSuba or the unhinged college humor of TenPuru, this fits right in that wheelhouse. Barakamon fans might also appreciate the laid-back seaside setting, even though the vibe here is way louder and way drunker. Twelve episodes of a seinen comedy that actually understands what hanging out with your worst friends feels like.
✨ MUST WATCH IF...
❌ SKIP IF...
🎬 EPISODE GUIDE
MANGA BRIDGE
This season covers Chapters 13-36 of the manga. Continue reading from Chapter 37.

🎭 CHARACTERS
Iori Kitahara
Iori Kitahara: Izu University student, part-time waiter at Grand Blue diving shop, whose college life takes unexpected turns.
Portrayed by Uchida Yuuma
Chisa Kotegawa
Izu University diving student, Nanaka's sister, secretly caring, and Iori's 'fake' girlfriend.
Portrayed by Anzai Chika
Kouhei Imamura
Kouhei Imamura: An 18-year-old otaku and diving club member, dreams of a high school girl harem.
Portrayed by Kimura Ryouhei
Aina Yoshiwara
Shy Oumi University student, Aina secretly harbors feelings for Iori and overcomes shyness through diving.
Portrayed by Asumi Kana
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