Story World Builder

Story World Builder is a story-planning tool designed by webtoon and web novel professionals. When an idea strikes, when you're shaping a character, when the plot gets stuck — it's with you at every step of creation. 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. It's the fastest way to find out what they'd actually say in a given moment. Conversations carry over from day to day, and you can 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 heading 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 staring at a blank page, choose a structure that has carried stories for a long time and work through its stages. Pick the one you like and it expands into an Episode 1 plot draft, and its cast can be added to your Characters in one tap. Scenarios you didn't pick stay in your history, ready to revisit. 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 worldbuilding assistant helps you expand settings and check for contradictions. 4. Character Management Design characters in detail: personality, MBTI, appearance, and abilities. See how everyone connects at a glance with the relationship map. 5. Plot Builder Structure your story with episodes, scenes, and cuts. AI suggests next-scene ideas, plot twists, cut ideas, and plot feedback. 6. Storyline Visually build timelines where multiple characters' stories intersect. Compare each character's actions across time periods at a glance. 7. AI Writing Assistant - Naming Studio: choose what you're naming — a character, place, faction, magic or skill, 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: AI is there whenever you're stuck. - Mood presets: get scene and scenario ideas in the tone you want — romance, fantasy, mystery, slice of life, dark, or comedy. Conversations are saved per project so you can pick up where you left off. 8. Export Your Story as a PDF Pick just the sections you want — worldbuilding, characters, plot, storyline — and turn them into one PDF. The relationship map is included as an image. Share it any way you like — messaging apps, email, AirDrop — and it opens without the app. Good to Know - All creation features (worldbuilding, characters, plot, storyline) are free as a launch event. - AI features are free 5 times a day. (Expanded while the Pro subscription is being prepared) - Character chat is free for 10 exchanges a day as a launch offer. - A Pro subscription with more AI features is coming soon. It's time to bring your story into the world. Start with Story World Builder!