An exile, a lair, Kai was cast out of the sphere for the crime of faking prophecies for his own gain. Out in the world of mortals, separated from the people he had grown up around, Kai learned to survive by being selfish and tricky. Traps to harm those who would chase him, honeyed words to charm, Kai learned to do anything it took in order to survive on the world outside. The corrupting did not help.
Eventually, years after he had been booted from all spheres by the voice of the Godly council, Kai was offered an invitation; he was allowed back into the sphere for the material Gods... if he kept his theories and stories to himself. It is said that Kai had met the Space God previously, hence the lightening of his sentence, but whatever the case Kai in now allowed to walk among the Gods again... but he seems to be unsure how to now with so long a time apart.