The story takes place on an unknown planet in the not-too-distant future. On this world, a surge in crime involving dangerous, miniature robotic weapons known as Custom Robos occurs. Those that manipulate the Custom Robos are commonly called "Commanders," and through specialized training, they learn to manipulate the robots' actions through the use of brain waves. One day, the hero and his comrades learn of an incredibly strong robot with autonomous maneuvering capabilities. In their search for a logical explanation regarding the existence of this powerful foe, the hero and his comrades uncover a secret about an event that occurred on this planet several hundred years ago ...
