Minister Xu said with a solemn tone, "Even now, among the many experimental subjects, there are only a meager three or four who meet the criteria. And they only barely meet them at the requirement of further intensified training."
The others could not help feeling a sense of disappointment, though some were unwilling to give up so easily and immediately asked, "Is it possible to use a dilution method so that others can use it as well?"
"The ratio for this is strictly determined. Once diluted, the effect will become negligible. On this point, I need to mention one of the principles behind its efficacy: spiritual Qi," Minister Xu shook his head.
Chapter 254