Once, 10s of thousands of years ago, several rocks were infused with power, and were molded into humans. Strong and powerful, they were the perfect weapons, and all the woods were desperate for one.

You may ask, What do you mean by "woods"? Woods are countries on a planet called "Solaria". The powers were each collected from different woods, therefore giving each "Rock Person" their nationality. Sarah's powers were from silverwood, a powerful country with a decent sized army. Tom's were from the two most powerful woods there were, Goldenwood and Platinumwood.

That's how Sarah and Tom were created. Tom's Rock was infused with fire and Wind, and Sarah's rock had electricity and phantomism. Others were created by the rocks, too, but soon, they began to disappear, one by one.