From the Start, I Gained Immortality: A Man and a Bear Slaughter Their Way Through the Cultivation World

A young man transmigrates into the world of immortal cultivation and gains eternal life from the start. To keep him from going mad through endless years, the System sends him a little bear. From then on, the man and bear set out to explore this vast world of immortal cultivation, snatching spirit stones, stealing cultivation techniques, and committing every kind of crime, from murder to arson.