[Two male protagonists + unlimited levels + trial of human nature + personality contrast]
A strange serial disappearance case silenced the detective and dragged him into an abandoned building with a non-existent thirteenth floor.
The elevator lost control at midnight, and he fell into a liminal space that violated the rules of reality——
Endless corridors, mirror cages, time loop convenience stores, resentful abandoned children's hospitals, deadly casinos that use humanity as a bargaining chip...
Every level forces him to betray, sacrifice, and give up his bottom line.
Here, fear is fuel, humanity is the bet, and staying alive is the only condition for passing the level.
He met the mysterious psychiatrist Lu Xun,
A cold-blooded serious case detective,
A doctor who sees through people's hearts but hides scars,
From testing each other to trusting each other with their lives.
