The Xorda developed the Gene Machine, headed by a scientist named Argus, using this device to evolve into a god-like race after countless years. Wanting to create what they consider a nearly perfect race, the Xorda created the Chao by using their cells and Gene Machine, their creations were capable of adapting to nearly any environment. Batches of Chao were sent to individual planets, where the Chao would evolve into a different species, a group of Xorda would be sent to act as their teachers, helping with the progress. One group was lead by scientists Gaia and Solaris, while Gaia was motherly to the Chao, Solaris took a more scientific, cold planet they look after was what they called Earth.