Chu Ran, a good-for-nothing disciple of the Demonic Sect, devoted twenty years of hard work to supporting his junior sister, only to be repaid with betrayal and deadly poison, leaving him on the brink of death. At the moment of his impending demise, he awakens an extraordinary cheat ability: every day at midnight, his body is fully restored, replenishing his health, healing all injuries and poisons, and restoring his lifespan. From then on, he uses his lifespan as fuel and stakes his life on every gamble, learning forbidden techniques, cultivating demonic vines, and infiltrating the righteous sect under a false identity as he fights his way through the merciless world of immortal cultivation.