All the martial artists in the Tianwu Continent knew that martial dao was divided into nine realms. There were lower three realms of martial arts, intermediate three realms, and upper three realms.
To most martial artists, they only knew about the intermediate three realms of martial arts because the Sage Realm was already the end that most martial artists could see in their lives.
As for the upper three realms of martial arts, they had always been known as the legendary realm. No matter which era it was, those who could reach the upper three realms of martial arts were extremely rare.
Many people did not even know the name and characteristics of each realm in the Upper Three Realms. They only knew that these existences in the Upper Three Realms stood at the top of the Tianwu Continent.