She came from Hao Xuan's shadow as it continuously expanded until it was not a reflection of him anymore.
The shadow grew larger, extending beyond the boundaries of Hao Xuan's own perception. They grew until there was no more room to grow and then it took shape. From within the darkness came a mangled claw, grasping at the very fabric of reality.
And then came another claw, wrenching open a passage between this world and another.
The shadows began to recede towards the center before rising upwards to create an archaic shape that had not been seen since ages long past. The bubble of reality surrounding the shadow popped like a balloon, allowing her to break free and descend on this mortal plane.
Entire districts collapsed under her weight as the shadow began to solidify into something more material. And then she reared her sinister head for the first time, in all her unholy majesty.