Another Kiruru appears in the South Pacific, but it was defeated by two unknown entities that look like Keronians, with subtle differences. Meanwhile, Keroro and the gang goes for a trip sponsored by Momoka to a private island. There, an alien named Meru, who claims himself as the prince of the deep sea, captures them, and aims to make Natsumi his princess, and that they had captured Keroro, who pleads to them to assist the Keroro Platoon, only to be kicked out.

Genres

Cast

Kumiko Watanabe

Sergeant Keroro

Etsuko Kozakura

Tamama

Jouji Nakata

Giroro

Takehito Koyasu

Kururu

Takeshi Kusao

Dororo

Tomoko Kawakami

Fuyuki Hinata

Chiwa Saito

Natsumi Hinata

Houko Kuwashima

Meru

Ryo Hirohashi

Koyuki Azumaya

Akiko Hiramatsu

Aki Hinata

Mamiko Noto

Angol Mois

Keiji Fujiwara

Paul Moriyama