Katz's elite warriors of Durando indeed had a bit more backbone.
However, as the saying goes, "for every clever move there is a countermove." In this world, the longest road is the path of deception walked by Zhang Menglong. As long as you have the slightest bit of emotion, he would definitely find a weak spot to exploit.
After being ruthlessly drilled for "five years of college entrance exams and three years of mock tests" and humiliated by the task of shoveling manure, Zhang Menglong eventually shoved them into the new buildings of Jiangnan University of Science and Technology to serve as formaldehyde purifiers for a few days.
It took less than a week for them to break down!
Their technology was far too advanced compared to Earth's. It wasn't just a matter of physically and mentally draining them; try to imagine, if you were sent back to the era of primitive humans and they forced you to do this and that, would you not break down?
