Mader is trying to unify the land of Asato using giant robots. A legend says that a champion, the giant of Iron, will come to destroy all lesser armour. Mader's ambitious son Hai tries to kill him and his other children, Hai's own brother Jordy and little sister Chururu, wanting no question as to the succession.
| Actor | Role |
|---|---|
 Yuriko FuchizakiChururu | Chururu |
 Banjo GingaCouncil Assemblyman | Council Assemblyman |
 Jun HazumiDarutasu | Darutasu |
 Fumi HiranoHirumuka | Hirumuka |
| HHidehiro KikuchiPrince Jorudi | Prince Jorudi |
| SShingo KanemotoSurazen | Surazen |
 Shigeru ChibaUindo | Uindo |
| TTerue NunamiUmen | Umen |
 Kazuhiko InoueUzuben | Uzuben |
 Show HayamiHai Shrutatto | Hai Shrutatto |
 Osamu KobayashiAzubesu (voice) | Azubesu (voice) |
| SShingo KanemotoMadaru | Madaru |