[System text] [Have brains but not much] [Slow pace]
More than 100 years ago, Earth's technology reached its peak, and was immediately invaded by alien species that appeared out of thin air. For the first time, it became a global consensus that humans are the same species. In just a few years, countries around the world have gone from bloody battles to struggling to survive, and humanity has gone from a population of 9 billion to only 200 million people.
Give me back my dog's life: God-killing version, please comment.