Lin Yi, who was just an ordinary kindergarten teacher, took a short nap on the bus on his way to work.
But when he woke up, the sky turned upside down, the city disappeared, and only the endless dark forest remained.
This unmanned No. 4 Bus is not leading to the human world, but to a series of strange exams that will lead to death.
Those who get off the bus without authorization will have no bones left.
Those who answer the rules incorrectly will be completely destroyed.
Everyone's mobile phone is the only admission ticket bound to the soul.
Novices enter the game, veterans slaughter their lives.
There is no luck, no mercy here, only cold rules and candidates desperately trying to survive.
When the bus drove into darkness, the exam officially started——
Staying alive is the only perfect answer.
