Refining pills was always tedious and dull, but Xiao Yu had already refined more pills than he could count, and had found enjoyment in it.
If refining pills had been novel and exciting at first, then now Xiao Yu's sole pleasure lay in focusing completely on every minute change in the medicinal ingredients and pills within the flames.
Not only did this keep him focused and let the time spent refining slip by unnoticed, it also allowed him to gain some experience in alchemy with every batch.
This was what it meant to polish excellence to perfection.
After breaking through to Dou Zong, Xiao Yu's soul power had increased tremendously, to the point that he felt his soul realm was now stuck at a bottleneck.
Without some fortuitous encounter, breaking through that bottleneck would likely take quite some time.
Of course, his soaring soul power had also strengthened his soul perception. Although he had yet to actually refine a Seventh-Grade Pill, his current alchemy skills and soul power should allow him to refine even a peak seventh-grade pill, setting aside the question of success rate for now.
Thus, a sixth-grade Spirit Fusion Pill posed little difficulty for him. In just a day and a half, a brand-new, high-quality Spirit Fusion Pill appeared in his hand.
Having watched the entire process, Yao Tianhuo's opinion of Xiao Yu rose yet another notch.
"Tsk, tsk. This young man's alchemy probably surpasses even that old friend of mine. Still, so many years have passed. I wonder how they're doing, and whether they've broken through to become eighth-tier alchemists."
Smacking his lips, Yao Tianhuo recalled the events of the past. Then he looked at Xiao Yu and sighed with heartfelt emotion.
"This era probably no longer belongs to old fellows like us. In the future,