The second dimension here should be understood as the second dimension,
-The dividing line-
The ACG culture in 1 1 area is highly developed.
People gradually have the concept of distinguishing between the overhead world and the real world in their works.
Because the overhead world and the real world are completely different worlds.
For example, idols, secondary idols and tertiary idols are completely different definitions.
So we consciously regard the characters in the works as two-dimensional residents, while we are three-dimensional residents.
Simply put, the second dimension here should be understood as the second dimension world.
"Second world" is not a concept, nor is it an industry term. Personally, it should be understood as the title. Due to various doctrines, as far as I know, the dividing line between the two-dimensional world and the three-dimensional world is not clear.
Two-dimensional sum world = imaginary world, three-dimensional world = real world, and so on.
Its essence is to distinguish the second element from the world and the third element.
For a typical example, the three-dimensional world is also called "reality". There is a word called "Li Achong". Refers to people who live a full life in Li Aru's place.
The above contents are provided by individuals for reference only.