Under Bai Shuang Er's reign, the Hero League renamed the dungeon into Realm. It was changed after people learned that Realm was an actual world that split into many dimensions.
Not only the Hero League changed the naming. But the Hero League graded the Realm based on size and how dangerous the Realm was. Based on the size, Level 1 Gate was the smallest dimension while the biggest dimension was Level 10. While the dangerous level was determined by color. White meant no danger and it went up to the green, yellow, orange, and dark red.
There was one particular color used to mark a special realm. It was black, it indicated the Realm was Specter's territory.
Since all cities followed the new system of the Hero League, the world was now under the Hero League's protection. They regulated rules that the dimension gate would be handled by the Hero League.
