I Am a Magician by Profession

Traveling through the world of immortality, strange things are rampant and demons are causing trouble. Pei Lan gets the fate of "Destined Son", don't want it! It could be better, but he ends up becoming an apprentice in a medical clinic, dreaming of becoming an alchemist. Everything in the world is unpredictable, until one day he started to change his destiny and accidentally awakened the "body of evil". From then on, strange monsters became easy to get close to. At the same time, the gears of his destiny began to turn. Refining the evil spirit? I haven't heard of it!