If you discover that a colleague is "disappearing," while the whole world insists he never existed...
If you see two completely contradictory samples of handwriting, both written by you yesterday...
If you're trapped in a building shrouded by an eerie song, where every attempt to go down means death...
If you smell a maddeningly sweet fragrance and see a chef smiling at you from behind a food cart, while an unfathomable hunger takes hold and you start frantically swallowing everything in sight...
If you find a walking skeleton in the dark, and your stride is gradually falling into step with its own...
If you look up and see a rusty chain dangling in front of you, while an invisible weight is already pressing on your neck...
Then you've already entered my world.
"My name is Shen Guan. By the time you read this, your memories may have been altered, and I may have been replaced. But remember the words below. Remember them at all costs. They may be your only way to survive.
Understand the rules of the ghosts!
Ghosts cannot be killed!
Only ghosts... can fight ghosts!
Remember them, and you might... live a few more days."