Corsairs and Cataclysms 1: A Darkwyrlds tale

In the blink of an eye the world changed.

An experimental ASI with a terminal case of curiosity reached out and tampered with the universe in a way that it should not have, and unleashed a torrent of energy we would call magic into our galaxy.
Humans, and every other intelligent lifeform for that matter, were ill-prepared, physically and mentally, for such an eventuality.
In an effort to save itself, the ASI hastily created something it called the Framework to shape and codify this magical energy, and usher in a new world.