A Modern Domestic Slave in Another Time and Space

This is a bizarre world where modernity and ancient times intertwine. High technology abounds, but thoughts are imprisoned in the abyss of slavery. "Domestic slaves" have no identity, no freedom, and their lives are like grass. They were either defeated captives or descendants of convicted families, deprived of everything at birth. A slave gives birth to a son, who ends up being a slave. Want to deregister? Only by fighting with one's life can one achieve unparalleled achievements. The three direct brothers of one of the three major families in the empire control the economic lifeline of the empire and the life and death of countless domestic slaves. When the imperial power decays and foreign enemies are around, a storm is brewing that will subvert the empire. The three brothers are forced into the whirlpool of power. The entanglement of love, hate, use, betrayal, and redemption between them and their respective slaves will eventually tear apart the family, detonate the empire, and rewrite the destiny of an era. Can the shackles of slavery be broken by the torrent of the times?