The initial mystery was that the lights in the community that were supposed to turn on did not turn on on time.
After Yu Mu arrived home, he opened the door and entered an escape game that only appeared in novels.
The story begins here
"Have you ever thought that the person you trust the most wants to kill you the most?"
"Maybe they are not human"
Nian Xiao & Yu Mu
Purpose: To... Scare people?