I Can Refine All Kinds of Elixirs, but Their Effects Are All Wrong

"Changqing, what are you making for my master to eat?" "Reporting to Master, this is the Qingxin Dan that can calm the mind." "Why is it that after taking it for my master, I feel unbearably hot and suddenly lustful?" "Chang Qing boldly says that this is the result of Master's failure to overcome the inner demon of lust. Master, please reflect on yourself and quit lust!" ... Ji Changqing obtained the alchemy technique of reverse Tiangang from the mysterious stone ring, and since then: [Bigu Pill] is made into [Taotie Pill] which encourages people to overeat. [Qi Gathering Pill] turns into a debilitating [Dejection Pill] [Pei Yuan Dan] is transformed into [San Yuan Dan] which causes vomiting and diarrhea. Many years later, Ji Changqing, who was dubbed the Alchemy Demon by the cultivation world, looked at the people fleeing in all directions, filled with grief and anger: "Don't run away, I've made really good elixirs!"