Freshman Iori Kitahara moves to a seaside town to attend university and live with his uncle, hoping for a quiet college life. Instead, he’s pulled into the rowdy Grand Blue diving club, where obsession with diving, wild parties, and relentless pranks collide with student life. This raunchy, fast-paced slice-of-life comedy explores friendship, coming-of-age, and the thrill of the ocean.

Freshman Iori Kitahara moves to a seaside town to attend university and live with his uncle, hoping for a quiet college life. Instead, he’s pulled into the rowdy Grand Blue diving club, where obsession with diving, wild parties, and relentless pranks collide with student life. This raunchy, fast-paced slice-of-life comedy explores friendship, coming-of-age, and the thrill of the ocean.