Rouen Town was the first human town that Ji Ruo had come into contact with after coming to Mother Earth.
Ji Ruo had entered from the entrance of the secret plane. Although he had used the dimensional door many times to find this small town, it also showed how remote the location of this small town was. It was almost at the edge of the secret plane. The land was barren and did not have much development value.
Because they were too poor, the slave industry did not develop.
The young people in the town would occasionally leave the town to work in the big city or something, but these people usually wouldn't come back after leaving.
Jonathan was also a noble, so he knew that those who went to work in the big city usually died on the way or were tricked into becoming slaves.
Rouen Town did not have slaves, but it produced them.
That was probably what he meant.