World of Longevity

Who in this world can escape death?
No matter how unparalleled your beauty, how radiant you shine above all, in the end, you become but a skeleton. Even if you are a generation's pride, sitting on vast lands, in the end, you will also turn into a scoop of yellow earth.
However, the legend of eternal life has always persisted in the world.
The elderly have passed down that beyond the human world, there exists a vast place known as the World of Longevity...