The Prompts are here! Get ready for a week for SciFi with Reiner and Jean From September 14-20th 2026 Use #reijeanscifiweek2026 when submitting your work. More info in the thread below
This time we have also made a collection on AO3 to keep track of things. When you post your work, add it to the ReiJean SciFi Week 2026 collection. If it doesn't work, just type in reijean_scifi_2026 and hit enter!
Hellooo, I'd love to participate but I'm horrible at writing AUs that take place in a different setting and also never really have time to write so the only prompt I could (semi) realistically fulfill would be the first one. Can I still participate doing just this one prompt or is it required to do all days? Thanks for organising!💙💚💜🩵
Hi there!
The only rule is to have fun. If you can do one prompt or all prompts doesn’t matter - as long as you have fun!
We also don’t police the submissions. If you sah the prompt fits your story, it fits the story!
Looking forward to have you here! It’s gonna be amazing!
Hi there!! I hope this isn’t a bother, but I swear there’s a fic that I found through you from this past Reijean week event. It was vampire Jean x werewolf reiner, and Jean has to infiltrate the werewolves basically by seducing reiner but they end up falling in love, and there’s like a mutant werewolf eren? And mikasa is banned from the vampire coven because she’s in love with eren and ran off with him? And jean’s vampire power is healing or smt and he can’t reveal that to anyone? I read it on ao3 and now I can’t find it. I figured this would be the best place to find it, please help 😭
- @ohagi-bites (tumblr won’t let me send asks from my main account lol)
Hi there! You’re looking for Say Hello To The Night by therealfinalgirl
The beach is bathed in moonlight, the wind cuts across the waves like a song. Ominous and dark. Behind him there are screams, there’s an explosion and Jean turns back to look at the firey plume. Shooting into the sky like a premature firework.
He turns away from the carnage, too much of that is already deep in his bones. He continues forward, one name and one goal forever hooked into his mind. He stumbles over his own feet, the adrenaline is wearing off. He feels the pain in his side now where two days ago he swung upside down in a trap. A piece of slim sharp metal that impaled his left side, blood weeped from the wound and for a moment Jean thought he was truly going to die. The blood has dried down at least, a sticky dry feeling that clings to his skin with sweat and dirt.
Reiner. Reiner. Reiner.
He mumbles the name to himself to keep him grounded. Stumbling once more before correcting himself. He’s so tired. He stops on his march to the beach, leaning against a tree to inhale deeply. This should have been done already.
Wanted to share my fanfic for @reijeanweek2026 here! Day 2: Soulmates ⋆˙⟡
Pairing: Reiner Braun/Jean Kirschtein
Characters: Reiner Braun, Jean Kirschtein, Karina Braun, Jean Kirschtein's mother, 104th Ensemble, Marley Ensemble
Status: 1/9 chapters
Rating: Explicit
Tags: canon-verse, almost canon-compliant, slow burn, AU - soulmates, angst with a happy ending, reiner braun needs a hug
Warnings: Eventual explicit sexual content, mild gore, emotional neglect, canon-typical violence/deaths, minor implied/referenced torture
Preview:
Jean Kirschtein is seven years old when his mother tells him that everyone in the world has a soulmate. Finding that person, however, is not particularly common. With the distance between villages and walls and no faster means of communication or travel than a horse, it can be difficult to find your special one.
“She’ll feel your pain and pleasure too, Jeanie. So when you feel her stomach hurt, you can rub your tummy, and she’ll feel a little better. If you get too cold, she can rub her hands on her arms, and you’ll feel a little warmer. Even if you marry someone else, you must never forget to take care of your soulmate.”
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Reiner Braun is seven years old when his mother tells him that every Eldian in the world has a soulmate. It was the will of the first king, to urge his subjects to spread his demonic seed. They feel the pain and pleasure of their fated one echo in their body starting at the age of ten. That’s how old Ymir Fritz was when she made a deal with the Devil of All Earth. For two thousand years, Eldians used their soulmates to breed and terrorize the world.
“That’s also why your father isn’t here. My soulmate…your father…is Marleyan. He can’t be with us Eldians.” He sees her turn away, covering her mouth, and he realizes she’s crying. His eyes go wide. He doesn’t want his mother to cry. “If only we were Marleyan…”
School Castes!! I’ve been sitting on this idea since 2024.
Holding Out for a Hero
status: 1/?
ship: Reiner Braun/Jean Kirschtein
warnings: a bit of violence
what: Alternate Universe - Attack on School Castes
summary: Jock Reiner’s plans to spend the upcoming snowstorm with his high school crush are interrupted when fate throws the infamous, injured bad boy Jean into his lap. Written for ReiJean Week 2026.
prompt chosen: wound caretaking
sneak peek:
The snowfall came as a surprise to everyone. A very late and not entirely unwelcome surprise.
The beginning of the year had been rather uneventful and warm, as if some higher forces were trying to lull everyone into a false sense of security. The weather forecasts predicted reasonable temperatures and sunny days, so Karina Braun went to visit her sister, as she had planned for a long time. Like every year before, Reiner was looking forward to having the house all to himself for several days, perhaps organizing a small party for his classmates… but he got more than he bargained for.
Because the moment his mother left, the temperature plummeted. Heavy snow blanketed the streets; ice sealed windows and turned sidewalks into never-ending ice rinks. Needless to say, all flights were immediately canceled, leaving Reiner’s mother stranded overseas.
Reiner wasn’t worried, per se. It wasn’t like she was alone or in danger—not counting Aunt Lucille’s ability to talk everyone to death. And as for himself… the school was cancelled, and so was practice, which Reiner counted as a belated Christmas gift.
One he intended to use to the best of his ability.
Jean and Reiner as dragons for reijean week 2026! They’re on a date but I couldn’t make the background look right so we have A Blue Gradient™️ instead.
One of the prompts was “dragons” and I already had a dragon AU for them with designs and everything… so I figured I should do something with that! I haven’t had much energy for art recently so I’m very glad I was able to actually finish something for once ❤️
This is actually my first time participating in a fandom event, I’m so glad I finally finished something in time lmao
ReiJean Week 2026 entry is here! Flower shop/tattoo artist au, anyone?
Bonus: Not just Reijean, but ALSO Eruri!
Devil’s Ink
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Jean’s car won’t start in the morning. He turns the ignition twice, swears viciously when the engine doesn’t kick to life, and glares daggers at the dark radio display. The bus is fifteen minutes late and he’s stuck standing next to a lady with a screaming baby and a guy talking too damn loud on his phone this early in the morning. By the time he enters Scout’s Specialties, there’s a steady drizzle coming down and his work polo is damp.
“I fucking hate Mondays,” he grumbles as he approaches the coffee shop counter while bypassing the line.
“Good morning to you, too, Jean.” His best friend’s grin stretches over his face as he slides over a container of cups. The aroma of freshly brewed coffee lures him in close for a cursory sniff and he grins. “Mr. Smith put in the order and already paid.”
“You’re a saint.” He picks up the drinks container and glances around the countertop. “Aren’t you forgetting something?”
“Right. Um-“
“Better luck next time, Kirstein.” Every hair on the back of Jean’s neck stands up as he turns to face his new nemesis. Reiner fucking Braun smirks at him from where he’s lounging in a booth, licking raspberry smeared crumbs from his thumb. When Jean tears his gaze away for a moment, he finds the display case empty and he whips his head around. Amused golden eyes watch him as though waiting for a reaction. Jean’s dying to get in one good hit on the asshole that’s been the world’s biggest pain over the last three weeks.
Ok stay with me…College AU starving frat boy artist Jean realizes golden boy football star Reiner isn’t as insufferable as he thought he would be 😂 Jean definitely bought the machine off Craigslist, He gives tattoos around school for extra cash. Jean is definitely pretentious with his music tastes and only drinks IPAs, while Reiner, of course, drinks beer.
Also, this is more self serving for me because I gave Reiner the tattoo I have 🥰
I don’t have an entry for tomorrow but I should have some for the other days!
rated t // wc: 6.8k // reijean LDR as discovered by a stressed out falco grice. kind of canon compliant? idk. written loosely following reijean week 2026 day 1: wound caretaking
Here's my contribution to Reijeanweek2026 for the Soulmates prompt. It's only the first chapter, but I'm going to keep working on it so expect regular updates <3.
Soulmates are a part of life, Jean has always known it. You touch someone one day and surprise, you're now bonded for all of eternity. It doesn't make him want it more, far from it. Especially when fate was obviously drunk the day it decided to bond him to Reiner Fucking Braun.