[Suspense and Supernatural + First Person + Reasoning + Pseudo Rules and Weird Stories + Horror + Heavy Flavors] Something strange suddenly started happening in the company more than an hour before leaving get off work, and everyone was involved in this terrifying game...
"Please note that each round of the game will randomly select 6 floors."
"There will be a different person on the floor where the game is not being played. Find him and stay away from him."
"The underground garage on the first and second floors is not open as a gaming area, so please do not go there."
"There are five minutes between each round of the game. During this period, the stairs can be used normally. Please choose your own floor and do not stay beyond the time limit"...
And behind this terrifying game, there is a huge secret hidden...