So the first time Noctis goes to Galdin Quay, Ardyn tosses an Oracle Ascension coin at him and says, "Consider it your allowance," and of course the boys are confused and brush it off but with the added context of chapter 13, I realize now it's a condescending joke about Noct being his descendant.

I'd love to see something where Ardyn's not only evil towards Noct in the life-ruining sense, but also purposefully trolls him by acting like the most annoying kind of asshole relative he possibly can get away with being without drawing attention to it. To the point where every time he shows up Noctis swears under his breath and clenches his jaw but it just wouldn't do to piss off the guy that's "helping" them, right?

Could have the Chocobros as just bros or Noct with one/two/all three of them, either way is good.