It has to be said that this Heavenly Demon King was extremely fortunate. Yelin had only finished crafting the deluxe version of the Soul-Gathering Pearl a few days ago, and he never expected it to come in handy so soon.
Although the Heavenly Demon King's current cultivation was only at the Early Core Formation level, its soul was a genuine Nascent Soul Stage entity that had successfully survived the heavenly tribulation and gained the recognition of the laws of heaven and earth.
Whether it was used to refine pills or smelted into a magical treasure to increase the sentience of an artifact spirit, it was an exceptionally rare and precious material.
Chapter 140