Magical Girl Armageddon

In a world where a handful of teenage humans have received otherworldly powers... They plan to destroy Earth once and for all before taking over the galaxy! As a member of the Solian race, solar-elven keepers of the sun, Ataru Apricia must halt the Magical teenagers before they grow beyond powerful and destroy life as we know it!

....Except... Earth is already too far gone. What are you going to do now?