Two friends, Simon and Kamina, become the symbols of rebellion against the powerful Spiral King, who forced mankind into subterranean villages.

In their closed-off underground village, Kamina and Simon chafe at the limits imposed by the village elder. Yet all this will change, when Simon stumbles across a fantastic device - just as the village's peace is broken by a violent intrusion.—ANN

In a bleak future where humanity is oppressed by an army of mutants and forced to live underground, a young orphan unearths a powerful robot. Together with a boisterous man named Kamina, a beautiful sharpshooter named Yoko and many other friends, they use the robots power to fight against their oppressors and take back the surface.—Anonymous