An epidemic disease, osteoarthritis, became popular among the people. As long as a person suffers from this disease, all the muscles and bones will be broken within a month, all the bones in the body will turn into pus, and the body will gradually become paralyzed. This disease is caused by sexual intercourse, affection, and contact with things given by others. It can be contagious through family ties and friendships. For a time, everyone is in danger. They refuse to take money or things from others, dare not get emotional at will, and try to avoid physical contact. Couples feel like they are facing a formidable enemy, and father and son turn against each other.
In order to survive, a large number of mortals chose to practice immortality and Taoism to avoid this disaster. The "Islamic Sect" is the leading sect among the Taoist sects. It is especially famous for leading its disciples to "the three precepts of precepts, love, desire, and greed", and everyone has joined the Muslim sect one after another.
The story begins with the troubled times of bone erosion, Po Jing and Fei Shuiyu practicing in the Muslim sect, and ends with the two people going down the mountain to experience catastrophes. There are seven, seven, forty-nine tribulations, forty-nine different stories, interspersed with the two recalling two past life experiences to explain the cause and effect of meeting again today. In the end, although Po Jing has experienced the disaster, his heart has never been opened, his passion has never been cut off, and his selfish desires have been burning. The heart was just forcibly suppressed in the sea of blood, eager for success, stubborn and willful, and had no time to wait for the leader to come back to personally teach the "Qian Kun Yi" formula. He asked for external power, and only wanted to cultivate the elixir. During the retreat, his muscles and veins were severed, and he died suddenly. However, after experiencing the pain of birth, old age, illness and death, Feishuiyu cultivated the inner elixir, broke through the barriers, understood the true meaning of life, the truth of the universe, and finally became an immortal.