The Mimic Grin Demon (Nejibishoma) Guide
Who Is the Grin Demon?
Nejibishoma, nicknamed Grin Demon by the community, is a high-pressure chase entity prominently featured in Jealousy Chapter 3 and referenced in later content. Unlike patrol-type entities, Grin Demon segments emphasize pursuit, sight breaking, and route memorization over slow stealth.
Visual design — wide grin, erratic movement — matches audio stingers that layer over ambient music. New players often die to camera panic rather than actual pathing failure.
Full entity stats and lore sit on Jealousy entity pages; this guide focuses on practical survival.
Trigger Conditions
Grin Demon phases trigger after specific ritual progress flags in Jealousy Chapter 3. Fetch all west wing components before crossing the trigger threshold if you want maximum prep time.
Some event variants reintroduce Grin Demon in limited modes — rules match Chapter 3 chase unless patch notes say otherwise.
Co-op triggers do not scale down difficulty — all players must know loop paths.
Chase Loop Mechanics
Core loop: demon chases on sight + proximity hybrid. Break sight twice before sprinting long straightaways. First break resets aggression slightly; second break buys time to interact with exit objects.
Never hide in bathroom-style dead ends with one door — Grin Demon pathing favors single-entrance rooms.
Mobile: pre-rotate camera before corners to avoid thumb drift during sprint turns.
Practice Recommendations
Repeat Chapter 3 demon phase on alts using revive codes while learning — muscle memory beats guide reading alone.
After mastery, apply patterns to Jealousy Chapter 4 segments with similar pressure.
Nightmare demon timing is tighter — see Nightmare guide.