Dark Lord: I Rely on Karma to Become a Saint

In my previous life, I was stabbed through the heart by my most trusted uncle. I traveled to the fantasy world with full of unwillingness, but I became a useless person who couldn't even bring in spiritual energy. I know very well that this is a cannibal world, and the mortals at the bottom are worse than dogs. In order to survive, I decided to go to the Yunmiao Immortal Sect three thousand miles away. It was common to suffer from hunger and glare along the way, and strange monsters were not uncommon. I escaped from the tiger's mouth countless times, and finally arrived at Xianzong intact. I tried my best, and even though I was just a handyman disciple, I still managed to enter the Immortal Sect. However, this place is not a pure land, but more dangerous than outside. As soon as I entered the sect, I was tricked by my senior brother and accidentally broke into the sect's forbidden area. He thought that I would be punished for this, but he never thought that I would get the "Illustrated Book of Cause and Effect". From then on, I calculated the cause and effect, and engraved the dark side into my bones. Even when I cooperated with others, I had to keep my back, so no one could take advantage of me. Just like this, step by step, I climbed from a handyman disciple to a sinister deity who could influence the structure of the Immortal Sect. But as I was playing with cause and effect, I gradually discovered that things that were supposed to be good always had hidden worries. The more I tried to avoid them, the more things came closer to me. What is cause? What is fruit? Until the day I broke through the Saint and had a decisive battle with the black-robed man who had been threatening this world. That day, the mystery that had been surrounding me was finally solved. That was an answer I couldn't believe - I was both the cause and the effect.