Having a perfect understanding about the multiverse is fundamental to how we act as the Shift of worlds and nations.

The F, A, and R as I commonly mentioned are what we call as universe classes. Each letters do have their own meanings, which will we discuss throughout this post.

Just as the infinitely-numbered amount of universes we have visited, we can't guarantee that our classification system counts all universe which are found on the multiverse. Heck, some people are theorizing the existence of multiple multiverses, which sums up to my headache.

That said, we'll only identify universes which are deemed important to us, especially in correlation to this universe as this post is originally written at.

It all starts from C.

Before we get into those F, A, and R universes, its important to learn about C, not that programming language, but is our home.

Here's a disclaimer, though, I wasn't born in a C-class universe, but believe it or not, I still feel home with all of you who have supported us in our lives. Maybe that's because there's a place with a "Welcome Home" sign attached on the walls...

...to the multiverse, FAR, FAR away...

And just to be clear, F stands for Foreign/Fantasy, A for Augmented (AR), and R stands for (Regionally and/or Chronologically) Forked!

That's it, like, that's how we categorize things. But we have a problem. What happens if a universe appears to belong to more than one of them?

Pokémon GO: An example.

Alright, Pokémon GO should simply be considered as an A-class universe. Because it's an augmented reality game based on Pokémon, which we currently consider as a separate R-class universe.

But why is it "forked", not "fantasy"? Most of the so-called Regions in the Pokémon universe are based on real-life. Kantō is well, based on the actual Kantō Region in Japan, with subsequent regions too, albeit with different names.

Alola is of course, Hawaii, Hoenn is Kyushu (Japan), and the latest Paldea region is based on Iberian Peninsula. The technologies depicted on each generation of the game mirrors that in the real-life, from good-old CRT monitors to interactive standing displays and even smartphones!

How about the numbers?

Our universe codes follow the following format.

C/F/A/R-XXX(-YYY)

Here, X itself is an arbitrary number, usually based on the numbers used to write the universe (or their brand's) name in a good-old cellphones. I mean this one.

So, KWANGYA is considered Universe F-5926492 because 5926492, expanded as 55-9-2-66-4-999-2, will definitely spell KWANGYA on these phones.

And lastly, Y is optional, but can be used to denote sub-universes. This is useful in case you might want to include an existing multiverse, like DC and Marvel, without having rewriting the already-defined codes of their universes which makes them more difficult to recognize in our system. So, Marvel's Earth-616 is simply R-627835-616, and DC's Earth-2 is simply R-32-2.

That's it! Easy, right? Oh I almost forgot, our F-class universe is named Universe F-1!