Qin Shihuang wanted to find the elixir of immortality and gain eternal life, so he sent Xu Fu, a disciple of Guiguzi Guanmen, to go to sea to search for the elixir. Mr. Guigu ordered Xu Fu to fake his death to avoid the eyes and ears of the King of Qin. Later, Xu Fu changed his name to Jingchen, devoted himself to researching the elixir of life, and finally gained reincarnation.