Fourth dimension
1. In the ACG world, the term "fourth dimension" refers to certain phenomena that are very incredible from a space perspective. For example, in the more traditional "Doraemon", Doraemon's pocket can be called a "fourth-dimensional pocket". Another popular one at the moment is Gilgamesh’s Noble Phantasm King’s Treasure (Gate of Babylon) in “fate/zero”.
However, some strange phenomena in space are also caused by magic, etc. However, the concept of whether magic and other phenomena are related to the fourth dimension is still vague.
2. The fourth dimension: Korean people say it, and Chinese people say it is off-line.
There will be no more later~ Science has not developed enough to explore other dimensions... In fact, this is just a statement...