Most Body Refining Skills from the Taoist Sects extend one's lifespan. Only a few shortsighted techniques focused on quick gains will shorten it. The Cultivation Techniques of the Demon Sect, however, are the complete opposite, as most severely drain the body's Vitality.
Among Demon Cultivators of the same Realm, those who specialize in Body Refinement typically have a lifespan one-quarter shorter than their peers. Moreover, while other Demon Cultivators' Power may weaken after they ascend to the Outer Realm, they can easily regain it. But for a Body Refining Demon Cultivator like him, abandoning his meticulously tempered physical body would leave him with less than a tenth of his original Power, making him easy prey to be devoured as sustenance by the Nascent Soul Great Demons of the Outer Realm.
