A criminal group known as Demon Seed terrorizes Tokyo with its vast armies of mecha. The local police is afraid to confront them, but one person stands in their way: Maron Namikaze, a 13-year-old idol singer with a catchy voice and unbelievable superhuman strength.

• Hiroko Kasahara
• Chikao Ohtsuka
• Norio Wakamoto
• Ichiro Nagai
• Maria Kawamura
• Yasunori Matsumoto
• Issei Futamata
• Koichi Yamadera