The Disaster Inside the Meteorite

(Post-apocalyptic + sci-fi + survival + evolution + no saintly do-gooder, decisive and ruthless + mortal cultivation.)

All humanity needs to evolve is a little disaster, courtesy of a higher civilization.

At first, no one paid any attention to the meteor, and even the observation bureau detected nothing unusual. Their arrival would bring Earth into the true universe.

Genes, bloodlines, higher civilizations, lower-class slaves.

Technology would no longer be the only answer, and survival would slip beyond humanity's control.