When you receive and open this letter, you get a chance to play a game, or a challenge.
From this moment on, you enter the game and cannot escape from this free place - a gate connecting countless worlds, a place that you can only enter but cannot leave.
Choose, survive... Or perish!
Survival means you will become an unusual existence; destruction means you will disappear forever.
Don't worry, I won't tell you who's playing this game with you. Mysteries are scary. I believe you will enjoy this game dedicated to those who are destined to defy fate.
Please forgive me.
A person who escapes reality - sin