slave
A human being or its fictional equivalent that is owned and controlled by a "master". A slave is typically used for forced labor and they obey their master's commands, lest they suffer punishment.
Use this tag when a character is seen depicted or treated as a slave. Often seen with their hands chained, having an animal collar with leash on the neck, or wearing rags.
If the tone is especially sexual, consider using femdom or assertive female.