When rules quietly tamper with reality, the invisible "curtain" divides the world, old laws become empty talk, and weird "copy rules" become the new code of survival.
Copies are everywhere, and life and death traps are hidden everywhere. There are many ways to enter, but there is only one goal: to come out alive.
Dong Shi, an ordinary person like us, has no strong power or golden fingers. He can only use the most clumsy way, leaning down to figure out the texture of every rule to find hope.