Mirror Age

After millions of years of evolution, ancient dinosaurs became beast-like humans and then returned to the earth in interstellar spacecraft. Where will mankind go? Dungeons, Federation troops, beast heads, cores... What's lost, what's gained? Try, trust, deceive, escape... What is benevolence and righteousness and what is utilitarianism? When a crisis strikes, what is the difference between the human heart and the animal heart? In the final trial, who is the so-called "culprit"? What exactly is the "Mirror" plan? Money or morality, which one is the "Best Choice"? Or is there no real "success" at all?