Please Don’t Break What Has Been Sealed

Liu Bi suffers from darkness phobia, and often has hallucinations or sees strange things in the dark, but in order to help his sister to see a doctor, Liu Bi finally decided to go to a strange courier company to become a courier brother.
During the day it is a normal company, but at night there are spooky packages which gets delivered.
“A late-night package, who knows what’s in it?”
What horrors will those strange packages trigger at night?
what’s behind the package….