The modern AU is the most versatile setting in fanfiction — drop any characters into the present day and watch them come alive in coffee shops, group chats, and shared apartments. These modern AU prompts give you 30+ everyday scenarios to write your favorite characters living ordinary, messy, very online modern lives.
Tip: The fun of a modern AU is the small stuff — what’s in their group chat, how they argue over the thermostat, who they are at 2 a.m. Lean into the mundane.
Everyday Life Modern AU Prompts
- Two characters are matched as roommates by an app and could not be more incompatible.
- Your character keeps running into the same stranger at the laundromat.
- A group chat slowly turns a loose friend group into a found family.
- Two characters are rival regulars at the same gym, and neither will back down.
- Your character’s new neighbor plays music too loud — and is infuriatingly charming about it.
Work & School Modern AU Prompts
- Two coworkers are forced to share a desk after an office move.
- Rival baristas, one espresso machine, one very long shift.
- A group project throws together people who would never otherwise speak.
- Your character’s new boss is the person they ghosted last year.
- Two characters keep getting scheduled for the same closing shift.
Romance Modern AU Prompts
- A dating app keeps matching two people who swear they are not interested.
- Your character fake-dates a friend to survive a family wedding.
- Wrong-number texts turn into something neither of them expected.
- Two exes are seated next to each other at a mutual friend’s dinner party.
Cozy & Slice-of-Life Prompts
- A snow day traps the whole friend group in one small apartment.
- Your character adopts a pet on impulse and has no idea what they are doing.
- Two characters build a weekly tradition out of bad takeout and worse movies.
- Moving day, too many boxes, and one friend who actually showed up.
- Two characters end up running a tiny neighborhood business together.
- A shared commute turns strangers into the highlight of each other’s mornings.
- Your character starts leaving sticky notes for a roommate they never see.
How to Write a Modern AU
Keep the characters’ core selves intact and let the modern world reveal them in new ways. A guarded canon character is still guarded over text; a dramatic one still turns a minor inconvenience into a saga in the group chat. Use modern details — phones, jobs, dating apps, tiny apartments — to create the small, relatable friction that makes a modern AU feel real. Pin down the relationship first so the characters stay consistent no matter the scenario. The little anachronisms are part of the charm too — imagining how a centuries-old or fantasy character would react to a group chat, a dating app, or a self-checkout machine gives you endless comedic and tender material. Lean into those collisions between who the character is and the very modern world they have landed in.
Build the Characters & Bond
- 💞Relationship Headcanon GeneratorDefine the dynamic.
- ✍️AI Fanfic GeneratorStart the fic.
- 🧍Character Headcanon GeneratorKeep them in character.
Write your modern AU
Generate the ship dynamic at the heart of your modern AU — free, no sign-up.
Frequently Asked Questions
What is a modern AU?
A modern AU is an alternate-universe fanfiction that places characters in the present-day real world — with phones, jobs, and everyday life instead of their canon setting.
Why are modern AUs so popular?
They are relatable and flexible. Putting characters in ordinary modern situations lets writers explore their personalities and relationships in fresh, low-stakes ways.
Do modern AU prompts work for OCs?
Yes — modern AU prompts are a great way to develop original characters in a familiar, everyday setting.