Even many experienced alchemists of the Slaughtered Moon Divine Blood sect would have failed in making the Soul Blood Mending Cursed Pill, because the most critical problem in the process was something no one could see, sense, or understand without a strong soul cultivation foundation.
The interference of excess Soul Qi, the attraction of wandering souls, the clash between different invisible energies, all of it existed beyond the perception of normal cultivators.
Han Yu let out a slow breath.
"It was my soul cultivation that made the difference," he murmured softly to himself.
That alone made him realize just how rare and terrifying true soul cultivators must have been in the past.
