Both Alister and Exoffus returned to the Transcendent World. There was already no point in Exoffus staying in the dimensional gap since those monsters and cyborgs wouldn't invade the Transcendent World anymore.
They were all under Alister's control and unless Alister commanded them to, it was impossible for them to be hostile to the Transcendent World.
Exoffus was already convinced of Alister's power and had willingly become Alister's subordinate after accepting Alister's offer. So, he wasn't against Alister having great authority over the Transcendent World, Monster World, and Technology World.
As long as it wasn't detrimental to the human race, Exoffus could care less about who would rule the Transcendent World as long as that person was also from the human race.
So even if Alister declared himself as the emperor of humanity, Exoffus wouldn't be against it and would do his best to assist Alister.
