In the game screen.
In the Celestial Ladder heading towards the Upper City, the game character and Zhang Juan are observing the view outside.
The so-called Celestial Ladder is essentially an elevator to the Upper City.
Though Upper City almost disregards Lower City in terms of management, it doesn't mean Upper City refrains from exploiting Lower City.
The middle-upper class in Upper City tend to look down on people from Lower City, preferring not even to engage in exploitation.
However, there still exist the lower classes within Upper City.
They would utilize people from Lower City to assist in production.
Zhang Juan's outsourcing factory operates on this logic.
Although many things can be produced automatically by machines, there's nothing cheaper than Lower City's labor costs.
The resources that people from Lower City require are worth less than one percent of the goods themselves.
Moreover, there's no need to consider the costs of machinery maintenance and site expenses.
