Kidnapped by a Demoness: My Cultivation Cauldron Reversal System

After a century of failed cultivation, elderly rogue cultivator Ye Bufan is ready to accept his fate—until a breathtaking demoness abducts him to serve as her human cauldron. Forced to practice a deadly demonic art that drains his remaining lifespan, he faces certain death. But when his Negative Reversal System awakens, everything changes. Now every curse becomes a blessing, every poison a panacea, and every life-draining technique a fountain of youth. Watch as this "useless" old cultivator shocks the world, leaving even his captor—the feared Demonic Cult Ancestor—staring in disbelief at his r…