Here's all the things that come up in KHUX that are relevant in KH3.
Disclaimer: KH3 really only mentions khux offhand about 5 times, and then there's One major emotional moment that's only emotional if you've played khux, but the emotion comes mostly from YOOOOOOOOOOOOO KHUX REFERENCE YOOOOOOO so like. weigh it as you will! otherwise here's everything I think you need to know
> WHAT THE FUCK KHUX ISkhx(chi) was a browser game for pc that was japan only that was: you get to make a keyblade wielder! you dress up cute! you join a union, you fight heartless, and collect this thing called lux! there are weekly rankings to see which union is currently collecting the most lux!!!
and then you get to watch out war break it in real time between the unions, and fight in the war yourself :)
khux (unchained key) is a mobile game that was supposed to redux browser chi, but things got a little out of hand......., and eventually moved onto its own (khux, union cross) unique original plot that was.... meant to tie into kh3????? at this point it mostly looks like it's going to tie into kh4, which is why all the kh3 references are off hand. planting seeds for the future, not actually things you need to know RIGHT NOW.
Appreciate the og title screen..... daybreak town my beloved <3
> SEASON 1 (UNCHAINED KEY)Season 2 is where the kh3 things start really getting juicy but Season 1 has most of the setup. This section will also cover
Back Cover, which is a movie they released with kh2.8 which was supposed to be "a movie adaption of khux to explain the whole thing!" but is really just Foreteller hours now lmao and doesn't explain any of the plot at all. Lmao.
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Master of Masters: The dude who is in charge of the Foretellers. the Big Master. The OG. I guess? He's their leader and he's kind of a shitbag. abbreivated to MoM by the fandom a lot which isn't at all confusing for being mom if you don't capitalize shit and also the acronym for the rhythm game melody of memory. Anyway he notably 1) set up his apprentices to start a war 2) is the og wielder of the Nortblade, the goatblade. Apparently the eye in that thing is his own eye???? Gross, dude,

Oh I don't have a pic of MoM becuase I'm trying to keep this image lite, but he just wears an Org cloak anyway, so it's not like he has a design.
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Foretellers: there are 6 apprentices of MoM, but only 5 of them make up the Foretellers, which lead each union in the game. Furry squad.

There's infighting! This leads to war! Whoops!
Back Cover is fun and the foretellers are cool but I cannot stress enough that they are barely relevant even to khux itself lol.
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Ava is the most important in that she was tasked with creating the
Dandelions, which is a collection of keykids that would survive the war by going to another world (
Season 2), but hilariously is the one who started the war herself. Lol. love her.
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Luxu is the remaining appreintice of MoM, who also has no visual design just wears an org cloak with the hood up. He is tasked by MoM to carry the goatblade (CONTAINING MOM'S EYE) so that the eye is always present to witness the events of history, which is how MoM wrote the
Book of Prophecies. By. In the past connecting to his eye in the future. IDFK. Luxu manages this via a lot of bodyhopping to stay young.
- Luxu is also carrying around
A Box that MoM told him to carry around. It's just a giant black trunk. The fuck is in that thing. No one knows! Maleficent is really interested in it though--- BECAUSE, AND I CANNOT STRESS ENOUGH HOW BATSHIT THIS IS, SHE BRIEFLY VISITED A DATA VERSION OF THIS TIME PERIOD (
SEASON 2) AND LEARNED OF THE BOX FROM THERE.
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Chirithy!!!! Chirithy is a cat companion that every keykid has that is tasked with guiding them and also helping them collect lux. There are many so many chirithies..... like a billion of them.... but each keykid had their own! They're all dream eaters btw :) (creature introduced in 3D)

Look at them! cute.
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Keyblade War was a thing that happened during this time period!! The Player char fights in it!!! You fight the foretellers in it!!!! Keyblade wielders just start murdering each other en masse and that's why they Keyblade Graveyard! Very gruesome. Not actually relevant for kh3 but just know that-- that's what khux is fundamentally about! until it isn't anymore lol
Also sidenote I wasn't sure where to put: i THINK MoM implies that this isnt the first/last time the keyblade war is gonna play out. waugh.
> SEASON 2 (UNION CROSS)- Just to keep you up with the plot. 1) War happened 2) Foretellers are gone they just vanished 3) player char survived thanks to Ephemer and Skuld (we'll get there) who saved them, 4) Ava tasked a group of five new people to be leaders in the Foreteller's place, because 5) we (the dandelions) are all in a data world now, and 6) have erased the memories of the war from everyone so that we will carry on without the pain of it ever happening. Only the Fortellers 2 boogaloo (i forget their group name) will remember.... but of course none of them participated in it, due to >Dandelions. It's a lot.
KEY CHARACTERS

These are the most important minus one who... she doesn't have plot but she sure is here.
Top left: Marluxia, who due to not being a Nobody has the name
Lauriam. Top right: we don't fucking know. Might be
Strelitzia, who I'll describe later, becuase she's not important to KH3 the way everyone else sort of is.
Middle left: Girl with black hair is
Skuld. Middle middle boy with white hair and red scarf is
Ephemer. Middle right asshoel with hat is
Brain. That's not a typo his name is fucking Brain. I hate it here.
Bottom left:
Ventus. You heard me right. Bottom right:
Chirithy.
These five make up Foretellers 2 and the plot of Season 2 is mostly about them! And also their friendship with Player Character, and it's good imo but.... not the bit that's relevant for KH3.
> Marluxia sure is here! Larxene is too - going by
Elrena - for some reason!!! The fact that they were here in ye olden days of the Actual Keyblade War Era might be why Xehanort is interested in them. Maybe not ! Who knows!
> The fact Ven is one half of an ingredient to make the X-blade and kick off War 2 is a happy accident, and iirc, Ven's ties to the war are.... not brought up in KH3. Might be wrong tho. Marluxia's and Larxene's ties are brought up i THINK but it's a single throwaway line.
> the finale of khux season 2 was: the darkness is infiltrating the data world we are housed in and it's not good! things are falling apart! better shut down! but there are
six pods (the pods from kh1 hollow bastion room you visit once actually during the
end of the world segment) that can send people to refuge elsewhere (read:
the future) and so into the pods go: Marluxia, Larxene, Ventus, Skuld, and Ephemer (i think). Meanwhile Brain stays behind to make sure things get shut? down? properly??? or something. Player could've gone as well but doesn't due to darkness complications. don't worry about it.
> Marluxia Larxene and Ventus end up ????? who knows where, except we do know where they EVENTAULLY end up, becuase they are major kh characters.
> Ephemer ends up less significantly far into the future and founds a town called
Scala ad Caelum which i think is keyblade master hub for a while before [EVENTS OF DARK ROAD I DON'T KNOW AND SURELY AREN'T
THAT RELEVANT BECAUSE DARK ROAD PUT OUT ITS FINALE IN 2022] and it's? I think it may eventually become land of departure? master keeper gets passed down from here??? idk. regardless, Ephemer's not around anymore as far as we know. Scala ad Caelum will get a brief ref in KH3.
> Skuld: who knows! strong theories point to she's the mysterious
Subject X that come up in the secret reports of kh3 (it's either her or Ava)
> Brain i
think becomes a Luxu vessel but that's not relevant and also i forget if that's even a thing or not (due to it being so not relevant)
That's it! That's everything!!! KH3 """requires""" you know these characters exist, but actually, KH3 mostly requires the Luxu and box lore, so i GUESS taht means
Back Cover actaully does cover everything you need to know for KH3. lmao.
Important to know that Ephemer and Skuld and Player were Big Friends during Season 1 of khux imo. But that might be my personal nostalgia speaking. Ephemer is kind of the poster boy of the game also lol.
BONUS LORE
> Lauriam has a little sister named
Strelitzia who...... er, dies, extremely shortly after she's introduced (lol. lmao.) Her murder is a mystery that takes khux fucking
three years to answer, but isn't relevant for KH3 because it was finally revealed uhhh like 2 years after KH3 came out. lol. Strelitzia MIGHT be one of the nameless stars in [kh3 area that'll be obvious], or she might not be! She seems to be important in KH4?????????? As in she's the only char other than Sora that's been in a KH4 trailer??????? It's so.
Anyway here she is she's cute

.... oh I'll give you Elrena too lol

That's it! That's everything For real!!!
> RECAP> Keyblade War is a thing that exists and Xehanort is Really Interested in reinacting it. For some reason. KHUX covers how the first (first....?) one plays out but it's mostly just a bunch of kids murdering each other.
> Master of Masters tasks his apprentice Luxu with carrying his keyblade (the nortblade goatblade) throughout history to witness it because magic, and also gives him a box to look after for some reason. We dont' know what's in the box. Luxu achieves this via bodyhopping forever to stay young.
> Ventus, Marluxia, and Elrena were around during the KHUX period of time, for some reason
> They got to the future via escape pods (literal)
> Ephemer is the posterboy of KHUX
> Chirithy is your friend who is here to look after you!!!! The player, and also every other keyblade wielder of this era. Belated addition: Yes, Ventus and Ephemer etc have their own Chirithies. Brain gives his a matching hat!! They are a dream eater and they love you.