The warrior of light Eldran and his robot Raijin-Oh, get injured in a battle with the Jaku Empire from the 5th-dimensional world. They fall down into the 5th grade class at Hinobori School. On behalf of the damaged Eldran, the “Earth Defense Class” takes up protecting the Earth.

Rica Matsumotoas Jin Hyuga (voice)
Mari Marutaas Koji Hoshiyama (voice)
Konami Yoshidaas Maria Shiratori (voice)
Mami Matsuias Hiroshi Takamori (voice)
Bin Shimadaas Tsutomu Kojima / Eldran (voice)
Saori Sugimotoas Miki Mano / Reiko Ikeda (voice)
Ai Satouas Aiko Shimada (voice)
Megumi Hayashibaraas Ruruko Himeki (voice)
Fumihiko Shimo