Bring your favorite characters or pairing into a fantasy alternate universe with a new world and a story engine. Map their roles, powers, and relationship changes; set rules for magic; then plan the conflict and key turns. Paste an outline or scene to check character consistency and spot gaps in the worldbuilding. Leave with a premise, plot path, or critique to keep writing.
Fantasy AUs
Build a fantasy AU premise, magic system, and plot around familiar characters.
Use Fantasy AUs
$49.99 / month
Includes every Agent on Ai-GEN. 15,000+ Agents for one monthly price, cancel anytime.
From the creator of GPTs with 8.5M+ chats · 4.2 stars · 37K+ reviews
Start Fantasy AUs — $49.99 / month
Your account is created at checkout. After payment, this Agent opens when access is ready.
Already subscribed? Sign in · Account terms
Cancel future renewals from Account & Billing → Subscriptions.
What it writes
- Fantasy AU premise and magic rules
- Plot beats with character arcs
- Worldbuilding and character consistency critique
How to use it
In your first message, name the characters, the source details that must stay, and one major change—such as making a detective a court mage. Add your preferred tone and ending direction.
What you bring
- Character names and key traits
- Source details to keep or change
- Tone, themes, and ending preference
- Know which characters or relationship to adapt
A good fit for
- Moving a favorite pairing into a kingdom ruled by spellcasters
- Replacing a modern setting with a dangerous magical academy
- Checking whether an AU outline keeps characters recognizable
Ways to start
A few requests this Agent can handle.
Build a fantasy AU for two rival detectives who become mages in a city where spells are licensed; keep their distrust and slow-burn romance.
Outline a fantasy AU where a found family guards a dragon egg across a frozen empire; aim for a hopeful ending and costly magic.
Check this premise for character and worldbuilding gaps: a shy healer joins a rebellion, but every healing spell transfers an injury to her. Suggest three plot turns.
Good to know
This workspace provides text assistance.
- Canon fact-checking or live source research
- A full story without your chosen premise
- Works from source-world context you describe in chat
- Cannot look up canon or open files
Before you subscribe
What am I buying?
One monthly subscription that opens this Agent and every other Agent on Ai-GEN. Cancel from Account & Billing.
What happens after payment?
Checkout creates or uses your Ai-GEN account. When payment and entitlement are confirmed, the purchased Agent opens. Choose a starter task, add your inputs, and send your first request.
Can I cancel?
Yes. Manage cancellation under Account & Billing → Subscriptions. Review the status and cancellation details shown there before confirming.
Can I use the response in my work?
Use it as a draft to review and adapt. Verify calculations, facts, rights, and suitability before relying on it. Do not provide information you do not have permission to share.
Report This Agent
Tell Ai-GEN about broken behavior, poor performance, misleading capabilities, or a safety concern.