C1356 Everything I Do Is God Knows What I Know and I Know What I Know

Royal Pill Hall was established more than four or five hundred years ago. It was said that it was founded by a person called Wang Kaihan.

This Wang Kaihan had grown up in a Daoist temple since he was young. He was influenced by Taoism and was especially interested in alchemy. He devoted himself to alchemy.

After he had made some achievements in alchemy