Standing in front of the metal door, Su Xiao began examining the structure of the door.
The entire metal door was very tightly constructed, with numerous gears and mechanisms distributed across it.
"Looks like that guy wasn't lying."
Su Xiao set the girl on his shoulder down, lifted her slender arm, and inserted it into an opening in the metal door.
Clack, clack, clack...
The gears on the metal door started to operate, and after a few seconds, the metal door slowly rose.
This thing was not merely a door; it was a subject tool.
A so-called subject tool is a forgery of an Imperial tool, imitating the craftsmanship of an Imperial tool, but its ability is much weaker compared to the Imperial tool.
Four hundred years after the emergence of Imperial tools, an emperor attempted to create them again, but the counterfeit Imperial tools that were made were not as strong as before.
