Are You Facing These Challenges?
Story ideas don't come, and time just passes with a blank page...
The story loses coherence midway, and foreshadowing remains unresolved...
Motivation fades, and unfinished works keep piling up...
NovelShaft Accelerates Your Creative Work
AI becomes your dedicated editor, supporting every stage from ideation to completion. Reduce writing time by 70% and double the quality of your work.
All-in-One Writing Solution
AI Idea Interview
Starting with "What story do you want to write?", AI deepens your ideas through dialogue. Together, you'll build genre, theme, characters, and world.
- Naturally organize ideas through dialogue
- Quick start with genre-specific templates
- Auto-generate character settings
Auto Plot Generation
AI automatically generates well-structured plots from your idea interview. Suggests scene-by-scene development and optimizes foreshadowing placement.
- Auto-balance story structure
- Drag & drop scenes for easy reordering
- Visualize unresolved foreshadowing
AI Writing Assistant
Real-time AI suggestions while writing. Next sentence, rephrasing, tone changes—all tailored to your writing style for smooth creation.
- One-click "next sentence" suggestions
- Maintain consistent narrative voice with style settings
- Voice input for hands-free writing
Consistency Check
AI automatically detects errors easily overlooked by humans, such as character name mistakes, setting contradictions, and tone inconsistencies. Achieve professional quality.
- Detect character setting contradictions
- Check tone and speech pattern inconsistencies
- Warn about unresolved foreshadowing
Progress Dashboard
Visualize writing time, word count, and completion rate. Goal setting and achievement graphs guide you to completion while maintaining motivation.
- Daily, weekly, monthly writing statistics
- Display goal achievement rate and estimated completion date
- Writing calendar with heatmap display
Diverse Export Formats
Export completed works in PDF, EPUB, text, and various other formats. Output in formats optimal for publisher submissions and web publication.
- Support for PDF, EPUB, Markdown, and text formats
- Vertical text display option
- Auto-generate SNS announcement text
Complete Your Story in 3 Steps
Loved by Over 1+ Writers
I was able to complete my first novel in just 3 months! AI suggestions helped me overcome writer's block, and the consistency check prevented plot holes. It's a must-have tool for writers.
Foreshadowing management is amazing! I used to forget to resolve foreshadowing, but now AI warns me. The quality of my work has improved dramatically.
The idea interview is revolutionary. I can deepen ideas I couldn't organize on my own through dialogue with AI. My writing speed has doubled.
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Frequently Asked Questions
Yes, beginners can use it with confidence. The idea interview proceeds in a conversational format, so even those who have never written a novel can naturally create stories. We also provide tutorials to learn the basics step by step.
All copyright for works created with NovelShaft belongs to the user. AI is merely a writing assistant, and the final work is the user's creation. You are free to use it for commercial publication, self-publishing, etc.
With the free plan, you can create up to 3 projects and use basic features such as idea interviews, plot generation, and AI writing assistant (up to 100 times per month). It has enough features to create short stories and prototypes.
Yes, you can cancel your subscription at any time from the settings page. After cancellation, you can continue to use premium features until the end of the billing period.
All data is encrypted and securely stored. Your works and personal information are strictly protected and will never be used for purposes other than service provision.