The planet LaMetal begins a war of conquest with the Earth, and the only one who can defend the world from this threat is the Queen Millennia, a former princess of LaMetal who has made Earth her home.

Keiko Hanas Yayoi Yukino
Keiko Todaas Hajime Amamori
Toru Furuyaas Daisuke Yamori
Ichiro Nagaias Professor Amamori
Kenichi Ogataas Banchou
Toshio Furukawaas Amamori's Computer
Taeko Nakanishias Seijoou Raarera
Kazuyo Aokias Hatsuko Amamori
Akio Nojimaas Man in Trench Coat / Colonel Geran / Genjirou Amamori (voice)
Kazuyuki Sogabeas Thief Millennia