It was no wonder that the man and the leopard were so astonished; they could never have imagined that in a mere twenty-odd days, the strength of the Invincible Mercenary Team would have undergone such an earth-shattering transformation. How could so many people have improved their cultivation levels so significantly in such a short time? How was it even possible? Looking at them, they didn’t appear to have taken any restrictive pills that would force a cultivation boost at the cost of one's future. As an alchemist who loved studying new pills, Mu Tianhe certainly knew of certain elixirs that could cause a rapid surge in cultivation in a short time. Yet, such extreme pills always had a fatal flaw: after taking them, further advancement became incredibly difficult—it was practically a dead end.
However, Mu Tianhe possessed the fundamental intuition of an alchemist. Sensing their aura, it didn't feel like the result of forbidden pills, but rather as if they had truly achieved it through their own diligent practice. This was extremely, extremely strange; no matter how much he racked his brains, he couldn't figure it out.
Forget it. If he couldn't figure it out, he would stop thinking about it. Judging by their expressions, those mercenaries wouldn't tell him the true reason anyway. But even if they didn't say it, he had a feeling that their improvement was inseparable from Li Dai.
Chapter 674