In the launch trailer, the Lalafellan pair was her parents. My guess is that Krile’s parents are not from the Source. My guess is that the portal was once connected to the 12th Shard that fell to the Lightning Calamity, and the machinery around the portal has lightning aether leaking out from it. Heritage Found consists of people from the 12th who maybe civilians that are poorer and have to work to supply energy for Solution Nine as slaves, as the richer people from the 12th live in Solution Nine.

Not knowing what became of her parents, that’s why Krile’s grandfather has a connection to Tural because he made a promise to them for Krile.

It seems far fetched but that’s what I think.