You didn't investigate the room with the doll, did you?
"Which one? There are two rooms that have dolls."
The room on the right
"I already checked that room, but how do I get the Taofu Drake talisman?"
I'm sure you've already entered the room with the doll and seen the code on the wall. The talisman is in the locked box on M wall
"Ohh I didn't pay close attention
Thank you, bro"