Slaves come in many types; they possess either low or intermediate intelligence, have certain innate talents, and can do a variety of tasks as instructed. Typically, the activity areas for production profession slaves are limited to the major cities, while combat profession slaves can assist players in battle.
Nie Yan doesn't need combat slaves because slaves, unlike summoned beasts, cannot be resurrected if they die, much like servants, who also cannot be resurrected if they fall in battle.
He planned to hire three slaves to help manage the shops in the city, taking care of some affairs on his behalf.
The slave market was filthy and chaotic, with tents erected here and there, and cages lined up on both sides of the central street. Within the huge wooden cages, NPCs of all ages were confined, their expressions defeated, their eyes filled with numbness, and those with strong physiques and brute strength were bound by ropes.