The Opening To A Deadly Adventure

Liunne Nightheart is suffering from DID and life threatening issues in the real world. He committed suicide.... only to be transmigrated into the Card World to take part in a survival game along with other contestants.
The point is to survive to get to the next level of the game.... or die trying.
Will he survive? What is the point of the game?
Who is the Game Master?
Can he beat the game and save his friends?
Only in his past lies the answers that he seek....