On a cross-shaped island in the South, a mysterious and gigantic  humanoid robot known as the "Cybuddy" is discovered sealed in the  underground ruins for untold ages. A group known as the "Order of the  Glittering Star Cross" attempts to remove the seal by abducting a girl  named Wako Agemaki, who they dubbed the "shrine maiden" and is the key  to activating the robot. A boy named Takuto Tsunashi arrives with his  own Cybuddy named Tauburn to rescue Wako. Thus begins a struggle to  unlock the secrets of the advanced technology and prevent disaster.