Stories that send chills down your spine
Atmosphere of dread, ghost stories, supernatural phenomena. AI helps craft the atmosphere and horror direction of your horror web novel.
AI designed for Horror
Gradual Horror Atmosphere Build-Up
Starting from micro-fractures in everyday life, ratcheting up horror layer by layer.
Supernatural, Psychological & Body Horror Sub-Genres
Applies different staging methods depending on the source of fear to bring out each sub-genre's character.
Horror Staging Timing Guide
When to show and when to conceal. Designs timing that maximizes the effect of fear.
Suspense Curve Management
Pure horror gets exhausting. Strategically places waves of release and dread.
Frequently Asked Questions
Seosa applies horror genre-specific craft rules — gradual fear build-up, enhanced sensory description, information asymmetry — to produce natural horror atmosphere.
Yes. Vengeful spirits, shamanic rituals, and traditional ghost story structures are built in as cultural templates, enabling folk horror distinct from standard Western horror.
Yes. Gore level can be adjusted with a separate slider, and in psychological horror mode, the prose shifts to emphasize cognitive dissonance, anxiety, and paranoia over sensory description.
The basic template follows four stages: first encounter (hint) → partial exposure (shadow/sound) → full reveal (confrontation) → true identity (twist). AI redistributes the stages to match chapter count and event scale.
Yes. Subtle everyday inconsistencies, off-kilter conversation, silent staring — quiet fear grammar is provided as a separate style. Rather than shocking horror, it accumulates dread gradually.