Mo Shang's Guide to Giving Up and Cultivating Immortality

A Pure Troublemaker Protagonist Who Stabs People in the Back and Runs Off, No Romance

The protagonist is used to having enemies everywhere and being repaid with betrayal after showing kindness. Someone like Amon, or Yang Ping'an from I Can't Forget, So I'll Assimilate the World. The protagonist doesn't need to have the right morals. They can suffer, but they can't be stupid. No CP.