Siderial is actually a mix of two beings named Sidel and Dot, as well as their daughter Reya they created after being sacrificed to a black hole and becoming 'gods' in the pocket universe it made.
The comic will depict her internal conflict as argument between parents and daughter in white room type headspace, similarly to how I will show the Unity council members when they form the Greater Unity.
Siderial is able to control void matter after they reenter our universe by chipping away at parts of the pocket universe they created and reusing it... Reya is not privy to what using the void matter does to her universe until much later and is not happy about it.













