What would happen to the world if the outcome or course of a historical event differed from what we know?
A game of Werewolf from seven years ago and one from seven years in the future are connected by a phone call.
A high school shut down after almost all of its student council members mysteriously vanished?
A company responsible for a project to relocate all of humanity?
As time and space intersect and overlap, how can you tell what is true and what is false?
Do you, the person on the other end of the phone, everyone else, or even the game as a whole really exist?
And who can say for certain that their existence in this world is real?