The eyes of everyone in the hall widened in a shared moment of enlightenment and awe as Overlord finished describing his grand vision for strengthening the Xaos Civilization. Though some details sounded extreme—like placing a demon's soul inside a small child—that was only due to ignorance and the lack of a proper understanding of what a Demon Soul Master was.
After all, the Demon Soul Master System of Streght had already undergone extensive testing, with millions of people employing demon souls safely. Never once had a demon soul corrupted its host's mind or produced any adverse effect, so it was considered completely safe. Of course, things could change if the soul belonged to Guardian or Sage Tier demons, as being at that level had all sorts of abilities that could work even after they die, but normal people would just receive Mortal Tier soul, an entity that even alive did not really have much wisdom to begin with.