It ended up here after the battle between gods and demons thousands of years ago. Because the terrain resembles a crane, it got its name - Crane City. The gods who followed the battle did not want to return to the fairy world, but lived in seclusion here. Over time, the place became full of spiritual energy, and with the vast stretches of primeval forest, various beasts were able to cultivate their spiritual energy and transform into monsters. Those who practice high levels can transform into human forms, and beasts can also be divided into good and evil ones. Those who practice good can cultivate Taoism, and those who practice evil can cultivate demons.
There are also practitioners who are called mystical practitioners, and those who have reached a certain level of cultivation can become immortals.