Park Chanyeol, a normal high school student with a normal life, suddenly finds himself pulled into an intense trial, to see if he can be proclaimed as a Knight of the Exodus. How will the boy face this challenge? Will he succeed?

Twelve people. One Labyrinth. None of them know how they got there, none of them know how, or if, they're going to get out, and in this dark and desolate place, only one thing is certain: no one else can be trusted.

Find out the true story behind those trailers, those decieving trailers that got us all fooled.