The realm of rules has arrived, and terrorist forbidden places appear randomly around the world. Entrants must abide by internal rules, and those who violate them will be killed.
Lynch was accidentally involved in the Happy Community and awakened the "Death Entry" panel - he could see vague reminders related to death.
Others live by the rules, but he looks for loopholes in the rules.
The strange shadow behind the mirror, the abnormal meat on the dinner table, the non-existent floor...
When everyone is asking "how to survive", he is already asking: "Who is playing behind the rules?"