Servants, as the name suggests, means "lower-class servants," which is a merchandise rarely seen even in the black market.
Compared to slaves with no human rights, servants are treated somewhat better and at least hold their lives in their own hands.
Servant merchants specialize in searching for qualified goods everywhere, buying indenture contracts from others, and then reselling them at prices several times higher.
Otherwise, they find wandering orphans, promise them a little food, and coerce them to sign the indenture contract and then sell them directly.
In the dreams of Liang Yi, the young Su Youyi was almost kidnapped and sold by such a servant merchant when Liang Yi was out, which is why both Liang Yi and Su Youyi loathe these unscrupulous merchants extremely.
"Senior brother, should we help them?" Su Youyi, recalling the time she and her senior brother wandered, felt some sympathy for the little girl on the stage.