Grand Blue Dreaming - Season 1 - Eps 10: Arrival in Okinawa
The Peek-a-Boo members arrive in Okinawa! After checking out their gorgeous vacation home, the group decides to head to the beach. In order to make sure the guys don't try to get naked, they decide to go to a popular beach with lots of visitors, where they have some wild fun on a banana boat. However, Iori loses their banana boat contest and ends up having to sleep in Nanaka and Azusa's room!
About Grand Blue Dreaming

Title: Grand Blue Dreaming
First Air Date: 2018-07-14
Last Air Date: 2025-07-15
Status: Returning Series
Rating: 7.7/10 (from 134 votes)
Language: JA
Seasons: 2
Total Episodes: 24
Network: MBS TBS Tokyo MX BS11
Genres: Animation, Comedy
Production Companies: Zero-G, NBCUniversal Entertainment Japan, Saber Links, Liber, Kodansha, avex pictures, MBS, jeki, qooop
Synopsis
When Iori Kitahara heads off to college, he decides to live at his uncle's dive shop in Izu named Grand Blue. Iori is looking forward to experiencing college life amidst the roar of the waves, the blazing sun, and his cute cousin who lives with him! However, Iori runs into a group of tough guys playing strip rock-paper-scissors, and ends up joining Peek-a-Boo, the college's diving club!
Cast

Yuma Uchida
Iori Kitahara (voice)

Ryohei Kimura
Kouhei Imamura (voice)

Chika Anzai
Chisa Kotegawa (voice)

Kana Asumi
Aina Yoshiwara (voice)

Toa Yukinari
Azusa Hamaoka (voice)

Maaya Uchida
Nanaka Kotegawa (voice)

Katsuyuki Konishi
Ryuujirou Kotobuki (voice)

Hiroki Yasumoto
Shinji Tokita (voice)