Our protagonist's wife has cancer, and he’s desperately trying to gather enough money for her surgery. But no job he takes pays nearly enough—until one day, a phone call changes everything.

He is offered a task: to retrieve important documents forgotten during the evacuation of an underground facility. But nothing in this facility is normal. Once used for biological weapon experiments, this laboratory lies deep beneath the surface—far from help, far from hope.

In this game, you will play through the terrifying story of a man who encounters things no human mind could ever dare to imagine.

And an important note:
You can hide... but you can't escape.

Our game is story-driven, progressing step by step as the narrative unfolds. As the story advances, so does the difficulty. This is a predator-prey horror experience—but the predator is vastly superior. It's twice as fast as you and cannot be slowed down.

The game doesn’t just tell the story of the character you control. It also reveals what happened to the other people in the facility, through visuals and collectible notes. A "note system" allows players to pick up and read documents at any time. An inventory system is also included.

Survival is a core theme. For example, in the second chapter, hiding is crucial. Being fast and stealthy is far more effective than running, which rarely helps. The environment is pitch black, and when your flashlight battery runs out, your chances of survival drop significantly. You must stay quiet and unseen.

The game contains many psychological horror elements designed to make the player feel trapped and powerless. The mechanics focus on evoking a deep sense of helplessness. Surviving is intentionally difficult.