Code Geass: Clash of the Worlds

Lelouch's Geass does not go haywire on Euphemia, but the Special Administrative Zone still turns into a bloodbath, and far, far worse than in the canon timeline...as invaders from the stars make their move to conquer Earth. It is up to our heroes to survive and fight for the sake of their planet, and the world powers will be forced to make previously unthinkable decisions...