Columbina from the Start: The Daughter Who Fell from the Sky

(This work contains some original elements. The protagonist is a villain, and the story may be rather heartbreaking.)

Tens of thousands of years ago, two outsiders fought a world-shattering war as they sought to impose their ideals upon the continent of Teyvat.

The one who lost was stripped of everything: her body, her wishes, her followers, and the person dearest to her.

From then on, the Daughter of the Sky fell into the mortal world, becoming a beast, a phantom, and a figure in myths and legends, until ten thousand years later.

An old man who called himself a Fool found her: "Since you still harbor resentment, then burn the old world with me!"

Girl: Mm.