I recommend the xianxia cultivation novel "Pill Formation Master" to you. After the main character Kuang Lang received the Immortal Emperor's inheritance, he created a new school of thought. He combined the refinement of pills and formations. He used formations to refine pills and formations. In the end, he successfully refined the Primordial Spirit Pill and became the master of the refining world. I hope you like this fairy's recommendation. Muah ~😗