To over analyze for a minute
I really appreciate how the whole haggling scene for so many reasons
1 - The introduction of demons as some secondary force, rivals to the Dokkaebi's, creatures who also crave stories.
2 - How this works so well within the greater world so far built, as we are seeing how stories and plausibility are functionally currency in this multiverse, so of course it makes sense that there ought to be things beyond gods and Dokkaebis that want them
3 - How of course Demons must then hate Dokkaebis because they run the corporation that has a monopoly on the star stream
4 - How this then enables Dokja to not give up his actually decent fables, or his egg, because he can just hand over his fable of beating the shit out of a Dokkaebi
This scene could have come off as a total asspull. It has all the ingredients. And maybe to some readers it is.
But it works so well within the greater working that it just comes off as perfectly natural.
That takes work and a keen mind. Love to see it.