The Devil Race was feared by cultivators of every race in the Cultivation World because devilish energy was domineering and could assimilate and devour nearly every kind of power in the world.
While cultivating this self-created Cultivation Method and Secret Technique, this was what Su Shi'er had worried about most.
The Extreme Yin Demonic Shadow had originally been a type of Demon Lord.
It was simply that, for the moment, he had no other suitable spirit body.
Moreover, this self-created Cultivation Method and Secret Technique had evolved from the Shadow Demon Transformation Art, so its compatibility with the Extreme Yin Demonic Shadow was naturally the highest.
"This is troublesome. If this other half of my soul is completely assimilated by the devilish energy of the Extreme Yin Demonic Shadow..."
"Even if this technique succeeds, when this Soul Avatar grows stronger in the future, will it bring benefit or harm to my true body?"
Muttering softly to himself, a flicker of doubt crossed Su Shi'er's mind.
Before he could think further, a new change had already appeared.
Not far in front of him, the aura of the Extreme Yin Demonic Shadow began changing rapidly.
In no time at all, the demonic shadow, which had originally resembled a black silhouette with no discernible face, swiftly developed distinct features.
Its appearance was exactly the same as Su Shi'er's.
As their gazes met, the Extreme Yin Demonic Shadow's eyes became much brighter, exceptionally lively and vividly lifelike.
Yet its aura carried both the uncanny strangeness of devilish energy and Su Shi'er's own unadorned nature, even possessing the vast, righteous qualities of Su Shi'er's cultivation foundation.
One righteous and one contrary—two powers that could never ordinarily coexist now appeared together upon the Soul Avatar.
"One yin and one yang are called the Dao. This Soul