In the original game world, there is a group known as the "Literature Party," who take interest in reading script materials within the game world and delving deeply into the settings behind the worldview. They are also regular visitors on major forums and video sites.
Among these discussions, regarding the "never-ending storm" in the depths of the Atlantis Ocean, there was historical evidence cited by the Literature Party speculating that it originated from the interface between the Main Plane and the Deep Sea Plane.
In a mystical sense, the universe we reside in is the Main Plane, also called the "Material Plane."
Aside from the Material Plane, there are many subordinate planes that interact with the Main Plane, engaging in material or energy exchanges.
