The so-called slave state is a monarchy; where the king has the absolute authority to take or spare a subject's life.
Ye Qingci had only read about slave states in history and had never seen one in real life, which is why she had specifically studied up on the history of Quyang Country online.
In any dynasty, any era, and any country, slaves were always the most humble and miserable beings.
In Quyang Country, slaves could be bought and sold at will; the life of a slave was worth even less than that of a cow.
Slave owners would often take their slaves to fight with beasts; if a slave died, there wouldn't even be a coffin for them— just a burial in a mass grave, unnoticed and unattended.
After reading the history of Quyang Country that night, Ye Qingci was awakened by a nightmare.
She dreamt she had become a slave, kneeling on the streets of Quyang Country with a straw sign fixed in her hair, waiting to be bought.