According to Luo Yu's description, he possessed a divine ability known as "Divine Demon Life Gifting," created by a powerful demon in ancient times, tailor-made for demons to possess others.
After a demon possesses another's body, it cannot fully exert its strength and if unlucky, it might not even be able to exert half of its power.
The primary reason is that the new body cannot cultivate the Demon Scripture, thus unable to resist the invasion of demonic qi.
This divine ability "Divine Demon Life Gifting" on the other hand, transforms the possessed body through demonic qi, adapting it to oneself to achieve the goal of fully utilizing one's strength.
"Adapting the possessed body to oneself, it's indeed fitting for a demon that a divine ability like this can be created!"
Su Nan was astonished, this ability was indeed tailor-made for demons; getting its assistance was mandatory for the utilization.