Adui
What if their entire galaxy is just the inside of a cultivator? And “she”, Sophia and the first infernal lord are just avatars to represent the will of the cultivator they live inside of. I know I’ve read in cultivation stories that cultivators eventually create entire worlds inside of their soul.
there is definitely something more to this entity the terror spoke of in the feminine form in the previous chapter which is highly likely the same one he was thinking about @ the end of this one. If so, it is clear she is above him in every way & sounds like she had a hand in his (and all the other terrors) creation and is now guiding Noah's evolution through the ranks.