The hammer hammered on the willpower, compressing and purifying it.
The willpower that was originally 70% full gradually shrank, but Su Yu didn’t feel that his willpower had weakened. Instead, it became more and more tenacious.
He didn’t feel any pressure after enduring six divine runes. On the contrary, it was easier than before.
The apertures required for the soul devouring art were also being opened, one after another.
The Soul Devouring Art only needed to open 36 apertures in the first place. Su Yu had opened too many apertures, so the overlap was extremely high.
At this moment, he only needed to open 15 apertures.
One million drops of mountain breaking ox blood essence at the later stage of ten thousand stones, two drops, could open one aperture.
It was very fast!
In the blink of an eye, 15 apertures were opened.
At this point, Su Yu had opened 168 apertures.