Following behind the silver-haired researcher and looking at the swinging long corridor, why were there so many water stains on the floor with such bright lights? The two sides of the corridor were covered with white walls.
Passing by some glass that could not be seen inside, he followed the researcher and came to a corner where there were piles of goods. The silver-haired researcher looked up, stacked the goods together, stepped on them and pushed the ceiling.
A piece of white tile on the ceiling was pushed aside. It seemed like there was a mechanism behind it! The silver-haired researcher saw the white ceiling pushed open a piece of board and reached his hand inside to pull out a sheet of paper. In the end, the researcher searched through the goods.
He searched for something that look
