The favor Damien called in from the two influences his palace was closest to was simple.
He asked them to help him eradicate the Divine Order.
He didn't say a single word about the Straea Clan. That was his own battle to fight.
The Divine Order was just a small fish in comparison, and Damien didn't mind sharing the meat.
The Veritas Clan was present to provide real battle power, since most of Void Palace's forces against the Divine Order were just there for show.
And the Holy Empire was coming to free the citizens from their brainwashing.
It took Damien a while to figure out how to do so.
They had been brainwashed since birth, so none of them knew life outside of it. To remove them from the Divine Order's control was to leave them without any identity whatsoever.
That wasn't the right solution.
After a lot of research and even more postulating in his mind, Damien created a theory that was basically already tested and proven.