Chapter 1: Something Weirder This Way Comes
Summary:
The first 10 gets added.
Notes:
(See the end of the chapter for notes.)
Chapter Text
The Bandwagon
@Kaffe Brun has been added
???: Greetings Kaffe Brun. You have been chosen to be the admin for a chat group featuring 9 other universes apart from yours.
Kaffe Brun: Oh noes.
???: Fret not. I know how secretive you are. Your closet is now a room where you'll never hunger or thirst, and time in your own world will stop so long as you are managing the server.
Kaffe Brun: I've been writing horror on my laptop before this sounds sketch af.
???: In any case I do hope this job is pleasant for you.
Kaffe Brun: Skit. Är du seriös?
@User2 has been added
@User3 has been added
@User4 has been added
@User5 has been added
@User6 has been added
@User7 has been added
@User8 has been added
@User9 has been added
@User10 has been added
User2: What is this... iron ingot with a glass sheet in my hands?
User3: This looks like something that tech start-up in Ninjago City is selling
User7: Uh oh. My brother's going to wonder why I got a mobile phone
User9: @Kaffe Brun du pratar svenska? Också varför är ditt namn Kaffe Brun? Det är lite roligt.
Kaffe Brun: Ja, lite. Men jag tror alla andra personer här kan bara talar engelska.
Kaffe Brun: Också Kaffe Brun är inte mit riktiga namn, men det tänker jag inte säga.
User9: Jaha, makes sense.
User4: Oh mobile phone how I missed you-
User5: Huh, so you must come from somewhere without mobile phones
User6: Mobile phone? Guess it's an instant version of mail.
User10: Huh. I suppose it is a message transport system... albeit in the form of a metal brick. This warrants more studying.
User9: What I want to know is why we've gotten these mobile phones in the first place. @Kaffe Brun you seem to know what's going on.
Kaffe Brun: Sort of.
Kaffe Brun: Tjena. I'm Kaffe Brun. he/him 18 years old. I'm the admin of this chatgroup.
User2: I'm Jesse, I live in a treehouse and I'm a competitive builder. I've actually just woken up, and now I'm waiting for my friends
@User2 changes name to Jesse
@User3 changes name to Kai
Kai: Hi. I'm Kai, and I'm a blacksmith. My sister just got kidnapped by skeletons to the underworld and now I'm walking to a Ninja temple or something
@User4 changes name to Captain Cori
Captain Cori: I've heard weirder. Ahoy, I'm Captain Cori of the S.S.Louie. Myself and the attendees of Papa Louie's Freezeria have all been kidnapped to the Land of Munchmore, a world of living food. I'm looking to rescue people and get warp coins to get to the others before it's too late.
@User5 changes name to Roland Crane
Roland Crane: Greetings, I'm Roland Crane. I am the President of Union, and I'm currently on a drive to a peace conference. I'm 48, and male.
User6: Konichiwa, I'm Tanjiro Kamado. I'm just a the son of a charcoal maker.
@Kaffe Brun changes @User6 name to Tanjiro Kamado
@User7 changes name to Pines
@User8 changes name to Sackboy
Tanjiro Kamado: Oh thanks
Pines: Stranger danger. I'm Pines, and I'm going to my Grunkle with my brother.
Kaffe Brun: Don't have to worry about identity here. You'll find out after everyone introduces themselves.
Sackboy: Uh... I'm Sackboy. Or Sackgirl. Just call me Sack. I'm a sackdoll. I... am ageless I suppose.
@User9 changes name to Maja
Maja: Hallå. I'm Maja, and I like mysteries. I run a detective agency with my brother Lasse. And now I want to find where in Sweden @Kaffe Brun lives. I'm 14 years old
@User10 changes name to Twilight Sparkle
Twilight Sparkle: I'm Twilight Sparkle, a unicorn scholar for Princess Celestia. She/her, 14 years old. What's going on?
Kaffe Brun: Alright @Everyone welcome to The Bandwagon. This chat is multiversal in nature. For example, there is no country called Union in my world, @Tanjirou Kamado, @Maja, or @Pines.
Kaffe Brun: And in most of our worlds, unicorns are fictional.
Captain Cori: ...I haven't seen a unicorn yet but knowing Louie? I'm about to see one real soon.
Kai: That... huh?
Pines: Wait. Does that mean my fanfic about Princess Unicorn might be real somewhere else
@Erma has joined the chat.
???: This should not have occurred.
Kaffe Brun: Yathink?
Erma: Send the link. Now.
???: Begone.
Erma: Waiwaiwaitwait my Princess Unicorn fanf-
@Erma has been removed from the chat.
Kaffe Brun: ... that was an 8 year old girl.
Captain Cori: Okay to shoot the elephant in the room but how do you know all this because it's kinda creepy.
???: Kaffe comes from a world where you all are fictional media in his world. He's prohibited from revealing too many details.
Kaffe Brun: Which is bollocks.
???: Fair. I got irritated as well when that rule came around.
Kaffe Brun: … Ah men. Jävla machine.
Maja: Please don’t swear. There’s kids in here.
Captain Cori: Like yourself?
Kaffe Brun: From what I’ve seen of other multiversal chatrooms, you better leave your innocence in a dumpster.
Kaffe Brun: I don’t think Firem will ever recover.
???: ... what. How do you know about that multiversal pocket?
Kaffe Brun: FMetaK
Kaffe Brun: Also the collection of universes here... are very out of pocket.
???: Touché.
Maja: Vad menar du?
Kai: I don’t understand that language you speak, but I get the meaning. What is FMetaK?
Kaffe Brun: Something I can’t reveal apparently.
???: Something he can’t reveal until it is time.
Kai: Anyways @Captain Cori you got any advice for rescuing people?
Captain Cori: Kid. This is also my first rodeo. All I got is my guts and the Freezeria flag.
Roland Crane: You sound like you’re expecting a fight.
Captain Cori: Rule 1 of the seas. Assume all are hostile until proven otherwise.
Roland Crane: That seems awfully pessimistic
Maja: She’s got a point though.
Pines: Oooh isekai to a hostile candyland!
Pines: I wanna go!
Captain Cori: You don’t.
Kaffe Brun: You don’t.
Kaffe Brun: Also…
@Kaffe Brun changed @Pines name to Mabel
Kaffe Brun: In my world you’re in one of the most famous animated shows called Gravity Falls.
Mabel: ... That’s where I’m going.
Kaffe Brun: And I will not have enough coffee for your antics there.
@Roland Crane sent an image
@Kaffe Brun kicked 7 users for 5 minutes
Captain Cori: Why would you do that?
Kaffe Brun: You really want to traumatize 7 children who haven’t seen war?
Captain Cori: That- fine. You’re right on that.
Roland Crane: I- It’s a nuclear warhead. It’s going to the bridysvdhehya
Captain Cori: Roland?! What happened???
Kaffe Brun: The story starts... @Roland Crane you’ll meet someone on the other side. He’ll be your biggest ally in the beginning.
@Kaffe Brun deleted 7 messages
@Tanjiro Kamado sent an image
Kaffe Brun: You’ve got to be kidding me your story starts that soon?
Tanjiro Kamado: I- what do I do?
Kai: Find survivors, but be careful. Who knows if the threat is still there.
Kai: That’s what I did with that skeleton raid.
Captain Cori: Also ready your axe. Better then than you.
Tanjiro Kamado: Alright... Oh kami no.
@Tanjiro Kamado has gone offline
Kaffe Brun: Tanjiro? Skit, get back to me. I don't care when, just be alright...
Kaffe Brun: Why did these events have to happen in such a close time-frame?
Sackboy: This is a poor time to say that I have been summoned to an entirely different planet right?
Maja: Why does it seem like most of our "universes" have being transported to a different world as a constant? At least Kaffe's universe is normal.
@Kaffe Brun sent an image
Maja: Why must you do this? Why is your head a literal cup of coffee?
Kaffe Brun: It just is.
Jesse: Weird costume, but Axel's done worse. Speaking of, Olivia's here I'm logging off.
Kaffe Brun: With how insane this chat has been within 2 hours we should all log off.
Sackboy: Fair.
Captain Cori: Aye-aye, gotta do sum scoutin as well.
Twilight Sparkle: I'd want to study your worlds more but... @Tanjiro Kamado talk to us when you're online alright?
9 users logged off
???: ... I desperately hope Kaffe is the one to be able to help these 9 worlds. The Titans, Muzan, The Overlord, Radley Madish, The Horned One... they will bring ruin to the Multiverse if left unchecked and able to traverse worlds. This is the 9th timeline... ironic isn't it, sensei?
Notes:
This chatfic is basically self-indulgence for myself. I mean who else would put Lasse-Majas Detektivbyrå but a Swede with nostalgia?
It feels that most Multiverse fics have BNHA and Persona 5 as constant stayers, but I thought to throw logic out the window.
Time frame of each universe:
• Papa Louie 3 — Post-intro sequence
• Demon Slayer — Kamado family's death
• LittleBigPlaner 3 — Post-tutorial
• Lasse-Majas Detektivbyrå — Pre-Cirkusmysteriet
• My Little Pony: Friendship is Magic — Start of season 1
• Minecraft: Story Mode — Start of season 1
• Gravity Falls — Pre-canon.
• Ni no Kuni II — Post-intro cutscene, after the bomb goes off.
• LEGO Ninjago — Just after Nya is kidnapped
• Kaffe-verse — Unknown, time-locked
Chapter 2: Who the hell combined these plotlines?
Summary:
Where Roland wakes up, Tanjiro is traumatized more, Lasse is brought for a ride, Sackboy makes a whoopsie, and Kai gets his ass kicked.
Notes:
(See the end of the chapter for notes.)
Chapter Text
The Bandwagon
Captain Cori: In light of yesterdays trauma I have a very important question. Why in Louie's fucking hat is kidnapping or getting transported to another world a goddamn constant?
Sackboy: Your guess is as good as mine, I'm apparently on an airship of some eccentric called Newton.
Captain Cori: Assume he's hostile.
Sackboy: I got a bad feeling about this, he seems extremely friendly for some reason. Like he wants my help but also doesn't want me to know the full details.
Captain Cori: Sounds like a more menacing Papa Louie.
Maja: You send really conflicting opinions about this Papa Louie.
Kai: Yeah that's actually a good point, what is your opinion on him.
Captain Cori: He's probably the most influential man in Flipverse period. His chain of restaurants have consistently earned the approval of Jojo, who's the strictest food critic of this day. And even though Jojo and Louie are known friends, it just makes Jojo more vicious.
Captain Cori: Which is amazing, and earned me a job as the captain of his very focken own CRUISE SHIP. But also the way he gets his workers is a combination of shady dealings and usage of fine-print. And also just straight up leaving Roy running the pizzeria.
Maja: If he tried that in Sweden he would really get into trouble. None of the chefs are licensed are they?
Captain Cori: You'd think, yet Louie has some kinda sixth sense when it comes to these things. Some people you never expect have cooking certifications, like FUCKING MITCH. MITCH, AMATEUR COMPETITIVE EATER WHO'S FIRST JOB WAS THE TACO MIA.
Kaffe Brun: Huh. Is that why I've never heard of issues even if the chefs have screwed up?
Sackboy: I have to ask but what are our worlds to you?
Kaffe Brun: Well right now they're actually other universes, but barring this circumstance heres the list. Cori, you're part of the Flipverse, which is a series of time-management restaurant management games and 3 platformer games and you're currently in Papa Louie 3: When Sundaes Attack. We all know Mabel.
Kaffe Brun: Maja, you're part of a children's book series from Sweden called Lasse-Majas Detektivbyrå (called The Whodunnit Detective Agency in English), from what I understand you're in the period before the third book. Sackboy is from a videogame series called LittleBigPlanet, and with Newton you're in the third main installment.
Kaffe Brun: Roland's from a game called Ni no Kuni II: Revenant Kingdom-
???: You can't reveal Tanjiro's world until it is time.
Kaffe Brun: ...Seriously?
???: Yes. To do so would skew the balance of the 10 universes.
Kaffe Brun: I'm not sure how skewed my world would be considering you've turned my closet into a time-dilated hammerspace.
Maja: Vafan?
Maja: That- that makes no logical sense whatsoever.
Kaffe Brun: I know, and I have a coffee mug for a head.
Kaffe Brun: Anyways where was I... Ah right Kai's from as series called LEGO Ninjago, and Twilight Sparkle's from a series called My Little Pony: Friendship is Magic.
Kaffe Brun: Finally Jesse is from a series called Minecraft: Story Mode.
Captain Cori: So all our worlds are pieces of media which you have read/watched/played. And you can't help us.
Kaffe Brun: Apparently I can only give emotional support and Vague Advice™. Blame whoever @??? works for that one.
Roland Crane: Ugh... Someone get the number of the bomb that hit me?
Captain Cori: ROLAND.
Roland Crane: I'm in some prince's bedroom and he's asking how I got a Leafbook.
Kaffe Brun: ... Roland take Evan and run.
Roland Crane: What? You want me to kidnap a royal prince.
Kaffe Brun: No time to explain, coup d'état.
Captain Cori: WHAT?!
Maja: VAD?
Kai: HUH???
Roland Crane: You've got to be joking...
Twilight Sparkle: That's unprecedented.
Jesse: ... What's a coup d'état?
Kaffe Brun: Ah right your world is relatively peaceful and doesn't have an organized government really.
Jesse: I resent that, but it's kind of true. Anyways OH SHIsdjbfiaou-
@Jesse sent an image
Kaffe Brun: So did you pick 10 zombie sized chickens or 100 chicken sized zombies?
Jesse: 10 zombie sized chickens of course. But how did you kn-oooooh. Multiverse.
@Roland Crane added users @Aranella and @Evan Pettiwhisker Tildrum
Maja: We can add people? Okej då.
@Maja added user @Lasse
Maja: Hej bror.
Lasse: Maja, varför har jag et telefon som ser ut som en plakett?
Maja: Jag vet inte, men @Kaffe Brun är också svenskt och han är chattens administratör???
Kaffe Brun: Ja. Men talar engelska här, okej? Bara vi tre kan prata svenska.
Lasse: Okej. But what is this chat in the first place?
Maja: Multiversal chat. Apparently our world is one of the more normal ones apart from Kaffe Brun's.
Maja: Just read from the beginning. It won't make any sense anyways and less so from my own mouth.
Sackboy: Well speaking of bad feelings-
Tanjiro Kamado: So my sister is a demon now.
Sackboy: I regret starting with that. Yours is pressing, I can wait.
Tanjiro Kamado: So whatever attacked my families home is most likely Muzan according to my sensei, who is the king of Demons and the only one that can turn people into demons.
Tanjiro Kamado: Demons are a a species of humanoid (sometimes) entities that can not stand sunlight, wisteria flowers, and nichirin (a specific metal compound or something. They are almost always bloodthirsty and eat humans.
Captain Cori: Kiddo you're speaking as if your sister is none of those things.
Tanjiro Kamado: Well she attacked me but then when I got knocked out by a Demon Slayer she seemed to recognize me again and stood to protect me?
Lasse: ...What kind of logic is that?
Tanjiro Kamado: I don't know. But she's non-verbal and needs have a muzzle to remind her to not fall to bloodlust.
Maja: Erm...
Lasse: Erm...
Kaffe Brun: This is a fictionalized version of 1920s Japan. But since Tanjiro met Giyu now... His series is a Japanese manga/anime called Demon Slayer, or Kimetsu no Yaiba.
Sackboy: Ominous. But fitting I suppose.
Tanjiro Kamado: Now I'm learning Water Breathing techniques to help me be prepared for the Demon.
Tanjiro Kamado: Also can I add Nezuko here? We both learned English since my family traded with some American merchants, and it probably means that I can talk to Nezuko properly without needing to understand her pantomiming.
Roland Crane: Go right ahead.
Captain Cori: Ya didn't havta ask kiddo.
Kaffe Brun: Family first Tanjiro, I'm taking a more passive role with being an admin.
Tanjiro Kamado: Alright! Thank you.
@Tanjiro Kamado added user @Nezuko Kamado
Nezuko Kamado: Onii-san, what's this device that appeared in my hands
Nezuko Kamado: Also those kids that are helping you... they smell like the dead, but not present.
Tanjiro Kamado: I- oh kami they've been killed weren't they.
Nezuko Kamado: Oh... sorry.
Tanjiro Kamado: OH KAMI THIS IS WHY UROKODAKI DIDN'T WANT TO TRAIN ME IS IT?
Captain Cori: ... I'll make mah way to the sailors den. And puke over board.
Roland Crane: Rather visceral reaction but Aranella's considering the same.
Aranella: Children dying is... ugh I would have thought Mausinger had more heart...
Roland Crane: We're currently resting in a secret tunnel, though we need to hurry.
Kaffe Brun: ... This will derail your plot but whatever you do when in a confrontation always keep moving.
Aranella: I- You know something.
Aranella: Fine I'll give the warning to Evan.
Kaffe Brun: Please do... for all of your sakes.
???: Kaffe what are you doing?!
Kaffe Brun: Canon events aren't real anymore. Not after you made this chat.
???: I- that is fair. Hope you don't screw the balance with this.
Kaffe Brun: Honestly with how Evan's been dealt a shitty hand? Nothing really would screw that world's balance more than it already was.
Aranella: Okay you really know somethings going to happen.
Kaffe Brun: Just make your way out of Ding Dong Dell.
Kaffe Brun: And @Sackboy, keep your guard up. And unless you're in an alternate verse... don't trust Newton.
Sackboy: From the vibes of this place it looks to keep something out rather than keeping something in, thought from the feeling it's like keeping something out so that something stays in.
Sackboy: Fiddlesticks. There's incendiary ladders.
Kai: Those tend to be ineffective, so you might be able to find platforms that are safe for when the ladder gets too hot.
Sackboy: I- thanks???
Kai: No problem. Nya's interested in mechanics and Sensei Wu's a sadist with his obstacle course.
Lasse: Maja why could you not have spared me from this madness?
Maja: Suffer.
Maja: Also we got a new case
Lasse: Ah right, the Circus thefts.
Kaffe Brun: So all the plots are starting now huh?
Kai: Is my ass getting beaten by a spinning log part of plot?
Kaffe Brun: Yes.
Twilight Sparkle: What about my own storyline?
Kaffe Brun: ... Oh. So much has happened this past day I have forgotten that your storyline is around n-
Twilight Sparkle: ... It's noon it shouldn't go pitch black in the sky.
Sackboy: I have committed a whoopsie.
Kaffe Brun: You helped Newton free the three Titans didn't you?
Twilight Sparkle: I need to go something bad is happening.
Notes:
Too many plotlines running around, but given how LBP3, MLP:FIM, Demon Slayer and Ni no Kuni II all starts it's kind of expected.
Anyways now that every single plotline has started I'm going to open up requests for 'support gifts', inspired by many other Multiversal Chat Fics.
KatLas_1991 on Chapter 1 Fri 07 Nov 2025 06:24AM UTC
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SDTwirix on Chapter 2 Wed 05 Nov 2025 11:06PM UTC
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Josephgamer on Chapter 2 Thu 06 Nov 2025 07:14AM UTC
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Kaffe_Brun on Chapter 2 Thu 06 Nov 2025 07:40AM UTC
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jckgwk on Chapter 2 Fri 07 Nov 2025 04:44AM UTC
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