Note: There are five realms in total: the human realm, the mortal realm, the demon realm, and the devil realm. Among them, the realms of mortals, demons, demons and immortals are called the four realms of the ancient capital.
Human Realm: The level of development of modern society. People believe in science and technology. Although they have seen strange phenomena such as internal forces, they still believe that science can explain them. They are called humans by the five realms.
Mortal Realm: The level of development in ancient times. Some people who are unwilling to believe in the knowledge of the human world, or modern people who are interested in ancient times, live in places where they are called mortals in the five realms.
There are boundaries between the five realms, and there are few connections between them. The human realm is most clearly separated from the other four realms. It is very troublesome to travel between them, but the four realms in the ancient capital are relatively easy.
Intention: sister