Commander Sugata discovered the existence of the Royal Underground Empire Tube, a malignant force that desires to dominate the land, which is based underneath Japan. He recruits five young people, each one specializing in a style of martial arts, and teaches them in the ways of the mystical "Aura Power" energy. A year after he recruited and trained the Maskmen, Tube is ready to strike.

Ryôsuke Kaizuas Takeru / Red Mask
Kanako Maedaas Momoko / Pink Mask
Hayato Tanias Sanjuro Sugata
Seizo Katoas Emperor Zeba (voice)
Mina Asamias Prince Igam / Princess Ial
Keijirō Shigaas Baraba
Yoshinori Okamotoas Oyubu
Hirohisa Soda
Toshiki Inoue