As an intelligence being born from advanced technology, Krayan was created to support the host and focused on military and combat. Therefore, it was lacking on the emotional side and operated similarly to a killing machine.
Unlike Krayan, Gaia was created to support the host and focused on repairing their home planet and ensuring the continuation of their races. Therefore, while it lacked combat power, Gaia was the best in defense, survival procedure, and was also highly intelligent in emotions.
According to the historical record, both of them were created with the mission of aiding their host to create a balanced, perfect world for their races and served as the Great Commanders for eternity.
Unexpectedly, since they were created, the only hosts they were compatible with were Du Beiye and Du Fengyan. After they were activated, they recorded every emotion and decision made by their hosts.
