Xie Wuyuan, the Blood Prison Ancestor who ruled the demonic path and was guilty of countless atrocities, was annihilated in body and soul during his ascension tribulation. Unexpectedly, a wisp of his surviving soul was reborn as a good-for-nothing disciple of a third-rate sect, and was forcibly bound to something called the Merit-Accumulation-to-Immortality System. From then on, the mass murderer was forced into a miserable life of rescuing people from danger, helping old grannies cross the street, and even finding cats for villagers. Just when he thought his life was hopeless, he discovered that the bottlenecks that had held him back in his previous life were all beginning to loosen. The Heavenly Dao had bestowed upon him golden merit light unseen for ten thousand years...