Shen Shi remembered very clearly that in the previous future lines, there was no such notion. After all, the human civilization of the past treated other races in much the same way as most C-level civilizations in the Mude System treated weaker races.
They would exploit and oppress as needed.
After all, there were even stronger civilizations above them. The Mude System doesn't consider emotions—shepherd dogs, if they lose their usefulness, are basically slaughtered for stew.
However, this time was different.
The C-level civilizations of the future world made some changes.
They established a subsidiary species system.
The so-called subsidiary species refers to races that have separated from their original tribes. They are allowed to work for human civilization, rather than merely being raised as Primordial Energy Batteries, like other alien species.
