Sergeant Keroro: Kero 0(2009)

Name: Sergeant Keroro: Kero 0
Genre: Animation
Released: 2009-01-01
Duration: 15 min
Cast: Kumiko Watanabe, Etsuko Kozakura, Jouji Nakata, Takehito Koyasu, Takeshi Kusao

Kumiko WatanabeEtsuko KozakuraJouji NakataTakehito KoyasuTakeshi Kusao

This is episode 0, the prequel to the main Keroro Gunsou anime series. KeroZero was shown in theaters with Keroro Gunsou Movie 4.