theory time:
First, why sre those 4 woman the Shining Stars? They had normal jobs and normal life’s. Maybe they are connected to a certain someone.
Let’s call Mothers universe U Void. There’s maybe a Shiki from U Void. Now here’s the thing, what if Mother was the Rebecca of U Void ? They’re both tied to the Chronophages. Or the Shiki and the Rebecca from U Void were also a couple duo like the Shining Stars and Dark Stars. Maybe there was a human version of Pino too and she became an Android like the Shining Stars. Her dream would make a lot of sense. She unconsciously felt that she was a human and this is why she cried when she saw her memories
She could be the child of U Void Shiki and U Void Rebecca