Demonic arts that rely on devouring the vital blood of others to cultivate are quite common within the Dao Martial Saint Land, but none offer such an exaggerated boost, and most come with numerous conditions attached.
Take, for instance, the Nether Yin Demonic Art, a technique whose name differs by only a single character from the Devouring Yin Demonic Art.
The Nether Yin Demonic Art is a widely circulated demonic technique across the Dao Martial Saint Land; any demonic cultivator with the inclination has little difficulty obtaining it.
Chapter 1658