Weird Talk About Rules: I Can Add Some Points to the Rules

At 2:17 in the morning, Shen Che, a night shift clerk at a convenience store, received a text message. The sender is himself. [Don't let the third customer check out. A few minutes later, a piece of paper spit out from the printer and told him seven rules that he must abide by. [After two o'clock in the morning, only one employee can be present in the store. [After customers take the goods, they must complete the payment before leaving the store. [Someone will come to take over the shift at four in the morning. Shen Che originally thought that as long as he understood these rules, he could survive until dawn. Until another "Shen Che" pushed open the door of the convenience store. He has the same face, the same employee number, remembers the same mother, and remembers everything about Shen Che from childhood to adulthood. Then, the third Shen Che appeared. All three believed they were real. And the rules only allow one person to stay. What's even more troublesome is—— Behind every rule, Shen Che can see a [+] that only he can touch. When more and more unexplainable errors begin to occur in a city, dead people reappear on the streets, non-existent buses pull into the stops, and people remembered by everyone disappear little by little from photos and files... It was only then that Shen Che discovered that it was never the rules that were truly out of control. It's reality itself that's starting to go wrong.