Groundain (グランダイン Gurandain) is the blue car-like older brother of the Kyodain. To begin his act of treason against humanity, he rushes to complete the military satellite weapon: the XVII. He is armed with a powerful cannon built into his chest called the Grounbuster X (グランバスターX Guranbasutā Ekkusu). Groundain is an homage to GrounzelImage:Icon-crosswiki.pngfrom Space Ironmen Kyodain.