Please note, I will not argue with anyone on this thread at all, and after I make this comment, I will unfollow it as I do not care for the shit storm that I know will occur on this thread because god forbid that this weeb verse from a medium/anime someone doesn't like is this strong. These are just going to be my thoughts on what is presented.
As I have mentioned when you showed me this a few months ago, not the biggest fan of you using Buddist concepts that inspired Bleach's cosmology as a measure to tier anything.
But on that topic, I find the whole portion of Mugen/Muken's size completely superfluous.
The World of the Living is OUR universe - shares our geography, our countries, language, other planets in our solar system, etc. There are is also far more than just a planet as shown with planets, countless stars, and even galaxies being shown in space. Having a fictional city doesn't change that it's supposed to be our universe. To conclude that the universe just stops at an unknown point in space for no logical reason takes more leaps of faith and is less logical than just assuming that it's should be the same size as our universe, when that is clearly what the world is.
Occam's Razor should take precedent here, I believe.
On this topic, I would like to address the notion that you need to prove the exact dimensions of a universe for creation feats to be 3-A/Low 2-C and beyond, and how I find it to be a massive double standard that isn't applied on any verse, like at all, ever.
Where in
Bruce/Even Almighty did they ever mention the exact dimensions of the universe? How about the universes of the
Arrowverse, which is a universe that also has made up cities as well - the dimensions of these universes aren't ever mentioned, from what I remember and could search up, in the hours of terribly inconsistent levels of quality writing that is the Arrowverse.
These are just two from like a million examples. Almost no verse explicitly states that their universe is 93 Billion light-years in diameter, so by following that logic, why are there so many 3-A and Tier 2 characters?
It is because, unless the verse explicitly describes a universal creation feat from a world's deity as something that is smaller or larger than our universe, then it is assumed to be our universe's size. This is how every creation feat is handled, and not applying this to Bleach is a double standard.
This does not apply to pocket dimension feats, however, as they are different for many reasons, all of which I will not go into here as that would be derailing as it is unrelated to this thread's topic.
Back on to Bleach's cosmology, all three realms of existence are different (And parallel according to numerous sources) space-times connected by different space-times and both described and drawn as such, they are also surrounded by an infinite void of Reshi that is the Garganta (Garganta is described as infinite in multiple different sources IIRC, but even if it's not, its size doesn't matter).
At the very least, Bleach's cosmology is one large space-time that contains at least three universal sized realms, and would be Low 2-C. Or it would be 3 separate space-times of universal size, and would be 2-C. The second seems more likely to me due to things like the Dangai and Garganta's existence. But having At least Low 2-C, likely/possibly 2-C, and taking in both interpretations is fine for me.
I feel that you completely and utterly explained very clearly why the characters should scale to the cosmology and so I have nothing to add there.
However, I do agree that Mimihagi's feat is likely more hax-based than tier-based, thanks to the concept of Stagnation that it embodies. It also feels exceptionally weird to have one arm of the Soul King be
soooo much stronger than the other, although I know that's not a legitimate argument. I just think that scaling Mimihagi should definitely be debated, likely for another thread in the future.
Well, that's all I have to say. Great work, it was a pleasant read, as I am sure this thread won't be.
Good luck, and good day.