Gender: Male
Age: 18 (Manga), 20 (Anime)
Hair Color: Blue (Manga), Black (Anime)
Eye Color: Grey
Affiliation: Grand Blue, Peek a Boo, Izu University
Occupation: University Student, Waiter (Part-time)

Iori Kitahara moved to his uncle's diving shop, Grand Blue, to start his college life. He joins the diving club which coincidentally uses Grand Blue as its base of operations. Iori realizes college life isn't going to be what he expected when he ends up going to his first lecture naked.