Do not impulse

If there is no reason, there must be something wrong!
An Zizai noticed something strange, but he couldn't figure out the reason.
Fatty Wu saw this and asked in confusion: "Master An, why are you asking this suddenly? Is there something wrong with my building?"
An Zizai said truthfully: "Someone has set up a formation in the building. The people who died just now were killed by the formation."
The fat man was shocked. After a few seconds, he cursed: "Damn it, who is so wicked?"
"Boss...