[ Rosaria makes a good point, and it's one Kaeya himself has considered too.

There was a split-second where he wondered if it would be worth joining the Meridian just to take it apart from the inside-out, but he doesn't nearly have the same amount of resources and allies here than he did back at Mondstadt. It would be trickier to pull that off, especially when it requires inside information — something he is sorely lacking right now. ]

I plan to make a quick trip to the Church soon enough. See what I can find just by asking the odd question here and there.

[ Oftentimes, people are more likely to share things if their guard is lowered after some casual talk. ]

I'll let you know if I unearth anything interesting.