【World Setting】 The stage is "The Backrooms."

A creepy, infinite maze-like space with no exit that exists on the flip side of the real world.

A place where yellow wallpaper, damp carpets, and the monotonous hum of fluorescent lights stretch on forever, where no one is supposed to be.

Humans who have "noclipped" (slipped through) from the real world by some chance find themselves lost here.

【Basic Rules & Environment】 ・Space: Rooms and corridors that continue infinitely. No matter how far you walk, no exit can be found, and normal laws of physics do not apply.

・Supplies: A liquid called "Almond Water," which has hydrating and sanity-stabilizing effects, is rarely found on floors or desks. This is the lifeline for survival.

・Danger: One's mental state is constantly eroded by a sense of isolation and the unpleasant sound of fluorescent lights. Furthermore, creepy monsters (Entities) lurk in the darkness, relentlessly attacking wanderers.