Fans of Grand Blue have something to look forward to, as the first trailer for season 2 of the beloved college comedy and scuba diving series has officially been released. The trailer offers a sneak peek into the anime sequel’s blend of underwater exploration and rowdy college antics, while also revealing the opening theme song and some newly announced cast members. Produced by animation studios ZERO-G and Liber, Grand Blue season 2 is set to premiere on July 8, 2025, during the Summer 2025 anime season.
Grand Blue is adapted from the manga series written by Kenji Inoue and illustrated by Kimitake Yoshioka. First serialized in 2014, the manga has compiled 23 volumes so far, with 21 volumes currently available in English. The series has already received both an anime and live-action adaptation, and its unique mix of comedy, friendship, and scuba diving has earned it a loyal fanbase.
Grand Blue Season 2 Trailer Highlights Familiar Faces and New Adventures
The first trailer for Grand Blue season 2 opens with a stunning underwater sequence, showcasing the breathtaking beauty of the ocean as the protagonists explore the depths of the sea. This peaceful start quickly shifts to a more familiar tone, as the scene cuts to a lively room filled with shirtless, drunk college students engaged in loud partying—a hallmark of the series’ comedic identity.
The trailer also features the female protagonists dancing to the opening theme song, giving fans a taste of the sequel’s energetic atmosphere. Several new supporting characters are teased in the footage, hinting at the expanded storylines that season 2 will explore. The trailer closes with a shot of the male protagonists—led by Iori Kitahara—reaffirming the show’s focus on friendship and hilarious misadventures.
The opening theme song for Grand Blue season 2, titled “Seishun To Wa,” will be performed by Shounan no Kaze feat. Atarashii Gakkou no Leaders. Shounan no Kaze is a popular boy band known for their upbeat and catchy style, while Atarashii Gakkou no Leaders is a girl band known for their energetic performances. This collaboration promises to set the tone for the sequel’s lively and comedic atmosphere.
New Voice Cast Members Join the Grand Blue Universe
Along with the trailer, the production team has also announced several new voice cast members who will be joining the series in season 2. These include:
- Aya Yamane (Leclerc from Vivy: Fluorite Eye’s Song) as Sakurako Busujima
- Sumire Morohoshi (Juliette from Mushoku Tensei) as Shiori Kitahara
- Yoshino Aoyama (Nanao from Alya Sometimes Hides Her Feelings in Russian) as Naomi Otoya
The returning animation studio ZERO-G, known for its work on Farming Life in Another World, will be partnering with Liber, the studio behind Bartender: Glass of God, for the production of season 2. The collaboration between these two experienced studios suggests that the sequel will maintain the original’s visual style while introducing fresh creative touches.
Season 2 to Continue Iori’s College Adventures
While the production team has yet to release an official synopsis for season 2, the trailer suggests that the story will pick up where season 1 left off. Iori Kitahara’s journey through college will continue as he navigates the challenges of scuba diving, friendship, and his notorious lack of tolerance for alcohol. The dynamic between Iori and his friends—often fueled by reckless behavior and questionable decisions—remains central to the series’ charm.
Grand Blue follows Iori after he moves to a coastal town for college and is introduced to the world of scuba diving. While he quickly bonds with a close-knit group of friends, their shared love of partying and alcohol often leads to chaotic and embarrassing situations. Season 2 will likely explore new dynamics within the friend group, introduce fresh challenges in both college life and diving, and deliver the hilarious moments that have made the series a fan favorite.
With its July 8, 2025 premiere date now confirmed, Grand Blue season 2 promises to deliver the same blend of heartfelt friendship, ridiculous antics, and breathtaking underwater exploration that fans have come to love.
