Story World Builder is a story-planning tool designed by webtoon and web novel professionals — for when an idea strikes, when you're shaping a character, when the plot gets stuck.
Key Features
1. Chat with Your Characters
Talk directly to the characters you've created.
They answer as themselves, drawing on the personality, speech, relationships, and world you wrote.
Conversations carry over; start fresh anytime.
2. Build a Scenario — on a proven story structure
Pick a few keywords and a story structure, and AI proposes three scenarios in different directions.
Ki-Sho-Ten-Ketsu, Three-Act, Five-Act, the Story Circle, the Hero's Journey, or Save the Cat's 15 beats —
instead of a blank page, work through a structure that has carried stories.
Pick one and it expands into an Episode 1 plot draft, with its cast added to your Characters in one tap. The rest stay in your history.
3. Worldbuilding
Record your world systematically — background, rules, magic systems, and places.
Write what doesn't exist in your world in the "Taboos / Limits" field, and the AI won't cross that line in any suggestion.
The AI assistant expands settings and checks for contradictions.
4. Character Management
Design characters in detail — personality, MBTI, appearance, abilities — and see how they connect on the relationship map.
5. Plot Builder
Structure your story with episodes, scenes, and cuts. AI suggests next scenes, twists, cut ideas, and feedback.
6. Write a Full Episode Manuscript (AI Pass Standard)
Turn an episode you've filled out into prose you can publish, following what you wrote — world, characters, relationships, and your "Taboos / Limits".
It picks up the flow of earlier episodes and the voice of your last manuscript, so names and tone stay steady.
Ask for a revision — change only the part you picked, or rewrite it all.
Copy it, or send it straight to a messaging app.
7. Storyline
Lay out how several characters' stories cross, time slot by time slot.
If you've already built the world, characters and plot, AI fills the flow in short lines based on them — just what each character is doing at that hour, without repeating the plot you already wrote.
8. AI Writing Assistant
- Start from a scene you have in mind: write down one scene from your head and we'll build the project and its world from that alone. Use it when you don't know where to begin.
- Naming Studio: pick what you're naming — character, place, faction, magic, item, or monster — add a mood, and get 15 names that fit your world, each with a note on how it reads.
- Dialogue and scene ideas whenever you're stuck.
- Mood presets: romance, fantasy, mystery, slice of life, dark, or comedy.
Conversations are saved per project.
9. Export Your Story as a PDF
Pick the sections you want — worldbuilding, characters, scenario, plot, manuscript, storyline — and turn them into one PDF.
The relationship map comes as an image, and the PDF opens anywhere without the app.
Good to Know
- Creative features, saving, and PDF export are always free.
- The AI Assistant is free for 10 uses a month.
- For character chat, manuscript writing (AI Pass Standard, up to 5 a month), or more AI Assistant uses, subscribe to AI Pass.
Subscription Details
- AI Pass Light: $1.99 per month / $19.99 per year
- AI Pass Standard: $3.99 per month / $39.99 per year
- Your first subscription starts at an introductory price and renews at the standard price above once that period ends.
- Payment is charged to your Apple Account at confirmation of purchase.
- Your subscription renews automatically for the same period unless cancelled at least 24 hours before the end of the current period. Renewal is charged within 24 hours before the period ends.
- Manage your subscription or turn off auto-renewal in Settings > Apple Account > Subscriptions.
- Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
- Privacy Policy: https://pentagonal-clover-eec.notion.site/38381493fd0e80d69fb6ea34fd6a83ef
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