I Made Up the Rules, So How Did They Become Real?

Her best friend disappeared at their wedding, leaving Wang He with a black ticket.

At midnight, a train linking the real world and another realm makes a random stop somewhere in the world.

To find her friend, Wang He boards with the black ticket in hand, only to discover that all the passengers have gone mad. To survive, she starts making up rules for the train. Who could have guessed that the rules would start coming true?