This isn’t the reasoning for Ygg.
The reason for Yggdrasil's Low-1C is that it created the Realm Between Realms from it's branches, with said branches being infinite. It even has branches that encompass the RBR altogether.
The RBR would need to be 5 dimensional to separate 4 dimensional parallel worlds.
Given the branches are infinite and would be 5 dimensional due to encompassing and manifesting a 5D Realm from themselves, with said branches being infinite, they would be Low-1C.
Essentially, you need to prove that this 5th dimensional axis is actually infinite. Otherwise you don't get to qualify.
However Planck would know way better then I about this.
However even then, from what I've seen DMC would qualify for Low-1C as;
- The Demon World contains multiple infinite physically separated space-times with their own time axis, which would need it to at least have infinite 4 dimensional space and an insignificant 5th dimensional space.
- The Demon World has it's own time axis, thus having it's own time dimension.
- Significant/infinite 4D space + 1 Time dimension = 5D.