The name's Xeroi. 

I come from a extinct race called the Crystal Gem Beasts. You see, they're were the powerful race in the entire galaxy, until we realized it was nothing but a run-down planet that was controlled by Gem Technology. 

It entered into a war between an unknown enemy, and it didn't have that much defense to protect itself from their advanced machinery. 

It turned into a barren wasteland, but we  managed to live on through the years, until Mobius existed.  

There was the legend of a hedgehog named Sonic the Hedgehog, who claimed himself as the hero of Mobius, and the world's fastest hedgehog. He wasn't alone, as he has several friends on his side to help him on his adventures. 

Luckily, we greeted ourselves to them, and they're friendly. 

But over the course of the years, it wasn't that easy to maintain that new life. We had a enemy that want to gets rid of us, and use our crystals as a energy source. 

We fought back with a lot of force, but he kept coming back, stronger and persistent as ever. His name was Mecha Sonic.