Eighty Years Old With Low-Grade Spirit Root, I Defy Heaven by Burning My Lifespan

After reincarnating into a magnificent yet ruthless fantasy cultivation world, Chen Ping turns out to be the most wretched transmigrator of all time. Unlike other gifted cultivators who are blessed with top-tier spirit roots and coveted by major immortal sects, he is born with the poorest low-grade spirit root, a useless aptitude that makes him utterly unqualified for sect recruitment. All prestigious immortal sects turn him away without a second glance, leaving him with no guidance, no resources, and no path to smooth cultivation. For sixty long and arduous years, he devotes every single day to relentless penance, practicing basic cultivation techniques day and night without slacking off in the slightest. Yet all his efforts end up in vain. Despite decades of persistent practice, he is still firmly trapped at the third layer of Qi Refining, unable to break through the trivial bottleneck that blocks his cultivation path. Now, he has become an exhausted eighty-year-old mortal elder, his body worn out and on the verge of total collapse. The harsh years of fruitless cultivation have drained his vitality completely, leaving him with merely eighty-seven days of lifespan remaining. Helpless and hopeless, he can only wait silently for the arrival of death, witnessing peers younger and older than him ascend step by step while he stagnates in trivial mortal bounds. Unwilling to end his reincarnated life in such a futile and miserable way, he awakens the heaven-defying Lifespan Burning System in his final desperate moment. This incredible system allows him to sacrifice his precious remaining lifespan to polish his cultivation techniques, eliminate inherent flaws in his practice, and smash through the rigid bottlenecks that have haunted him for decades. While countless cultivators spare no effort to cultivate for eternal immortality and endless lifespan, Chen Ping burns his own life recklessly, gambling everything to carve out a glorious future of his own. From a dying old mortal doomed to perish soon, he defies the cruel fate step by step, marching forward bravely to conquer the supreme and unparalleled immortal path.