Before going to the main content, I suggest everyone to take a look at
these to understand the hierarchy of universes in the multiverse and
what is accepted.
I will quote them again here to avoid confusion. There are ten levels of the universe, determined by the size and number of Empyrean Dao cultivators can be born in these universes, remember Nanoverse is always the lowest rank. And so every time the word "universe" is mentioned (from chapter 1068 and so on), consider it's much larger than 2-A multiverse (Mortal realm or Primal chaos)
For the size of Mortal Realm
We don't know what size differences were between the universes before the Super-Terraverse.
But the Super-Terraverse (which is the beginning of what's called the Super-Universe) basically so massive that it can't be measured in data units while smaller universes like microverses can still be measured even though its size far exceeds the infinite multiverse (in the same way that any starfield in any universe is measured in light-years unit, just for universes data unit is much larger than "light year").
I initially suggested it as Low-1C or at least 2-A possibly Low-1C but Ultima said it should be "At least 2-A" so I'm fine with his suggestion
Then we have the Super-Giga-Terraverse which is implied to be larger than the Super-Terraverse by infinitely many times.
Then we have the Hyper-Infiniteverse. With the Old World described as being not just eight times larger but dozens or even four hundred times the Super-Giga-Terraverse (the four realms here are Arcane Universe, Taiwu Universe, Brood Universe, and Hunyuan Universe)
The weakest 9th Deathless like Zhao Jiangshan considers this multiverse to be small despite the existence of more than four Super-Giga-Terraverses, One (or two) Hyper-infiniteverses, the New World and the Old World as well as the four Super-Giga-Terraverses and countless smaller universes are spawned by the New World in every moment
Then we have a timeskip of 100k years since the MC gave lifespan to every entity in the verse except him lol. The Multiverse has grown to such an extent that even if any Empyrean Daomasters spend their entire lifespan (hundred million years) they cannot discover even one ten-thousandth, not even 9th Deathless can explore entire multiverse
But Zhou Qin and the other five Protagonists (Like Yang Qi (DT) are so powerful, that their thoughts permeate every corner of the multiverse, they can destroy it even with a punch.
甚至到达了天道境界，也就是亿年寿命而已。
However, there is still a final transformation. Chapter 1113
Then we have The Mind/The Heart, every living thing has it. It has an infinite source of power that the 9th Deathless or the likes of Zhou Qin, Yang Qi are only finite compared to it.
After White Teen (a merger between Yang Qi and 5 other MCs like Zhou Qin, Jiang Li, Fang Hang,..) and Gu Chensa removed their lifespan restriction table, a 9th Deathless with an initial lifespan of one trillion (Zhou Qin and Yang Qi are one hundred billion to nine hundred billion) have harnessed the full limitless power of Mind and created the cosmic ocean. Each drop of water is a universe, in the universe there is a universe, and so on to infinity.
There are two paths here: one is 2-A as suggested by
Eliza in the previous thread and
PainTo12, the
other is according to Ultima (partly) and
@deonment , it would be High 1B because the lowest universes in the infinite series is baseline universe (yeah, since the nanoverse is much larger than baseline 2-A although it's the bottom of the hierarchy of universes in the multiverse since chapter 1068)
Tldr
Primal Chaos: 2-A (Truly infinite to 2-B Empyrean World)
Mortal Realm: 2-A (Quintillion times Primal Chaos)
Nanoverse: 2-A (much larger than Mortalverse)
Microverse/Mesoverse/ Megaverse/Gigaverse: 2-A (each larger than the last)
Super-Terraverse: At Least 2-A
Super-Giga-Terraverse: infinitely times Super-Terraverse
Hyper-Infiniteverse: At least Eight to Eighth Hundreds time Super-Giga-Terraverse
Multiverse/Yang Qi (DT) (after Hundred Thousand year timeskip): Countless times Hyper-Infiniteverses
Cosmic Ocean/Infinite power of mind : 2-A (Infinitely times Multiverse) or High-1B
A random 9th Deathless who created cosmic ocean: countless x Infinite x infinite times Cosmic Ocean since their power is infinities upon infinities (each living being in Cosmic ocean has infinite power of the mind. There are countless drop of water in ocean, infinite universes in each drop since it's a loop, each universe much larger than 2-A so infinite beings)
Annulleverse/Annulled Immortality/10th Deathless: 2-A or High-1B? Low-1A? 1-A? (since they're apophatic to everything below)
MC: scale above infinite hierarchy of Deathless realms
