Comments of chapter undefined of Rise Of The Infinite Sovereign

If soul scrolls can be forcibly used, then the kings would have forced soul scrolls on prominent talents and the nobility, and the nobility would have used soul scrolls on important citizens under their jurisdiction. In such a scenario, talented people would not stay free, and kings would not have to worry about rebellion. How is it possible that the MC was the first to think of using soul scrolls to forcibly recruit talents?