I Burn My Lifespan to Gain Cultivation, but I Can Steal Years of Life!

Wang Yan transmigrated to the world of immortal cultivation and awakened mutated dual lightning-and-fire spiritual roots. But the golden finger granted by the System had no particularly special abilities. He only discovered that he seemed able to expend his own lifespan and convert it into cultivation. But he chose to use it as little as possible. The purpose of cultivating immortality was to live forever, so he didn’t want to shorten his life any further. He wanted to live a few more years and contend for a place on the immortal path. Then, just after he became an outer disciple of the Tianxuan Sect, he happened to notice that a fellow cultivator of the same rank he’d touched had grown white hair overnight! He could drain someone’s lifespan, turn it into cultivation, and break through himself that very night! Cultivators valued aptitude and longevity above all else. This was a trick that could catch anyone off guard. It seemed like… a demonic cultivation technique. …