You can't say "4" in the elevator. Say it and disappear.
There is no turning back in the hospital corridor. Once you go back, you will never come back.
Su Xian is trapped in a strange story about rules. The only clue is the seven words left by his father: "Seven nails, hidden in the dark."
The gatekeeper said he was something "qualified." Shadow chases him and saves him. He said in his father's voice: "Xianxian, run quickly."
He doesn't know what the "seven nails" are, and he doesn't know whether the USB flash drive left by his father is real or fake.
He only knows one thing -
Rules are not meant to be followed. It is for rewriting.
