Devouring Soul Power caused Li Xiaoyao's soul realm to continuously break through.
The Soul Realm and the Spirit Power Realm are two separate realms; for most cultivators, the Spirit Power Realm is often stronger than the Soul Realm, which rarely becomes powerful through acquired cultivation.
The soul is innate, and although it may gradually grow stronger with the body, the extent of the strengthening is very minimal.
Similarly, devouring souls makes it exceedingly difficult to enhance one's cultivation level. However, this time, after Li Xiaoyao devoured the man's soul, not only did his own soul power surge, but his own cultivation level also had a slight increase.
Before the devouring, Li Xiaoyao was at the ninth rank of the Abstinence Realm, but now, he had made a breakthrough past the Abstinence Realm, reaching the first rank of the Spirit Cultivation Realm.