This is a huge indoor food market. In order to maintain air circulation, two huge exhaust fans are installed on the walls of the market. The giant fan is dozens of times larger than a human being. It emits clear engine and wind sounds with every turn. Strong sunlight shines through the exhaust fan into the space of the vegetable market. The wet market is divided into two floors, connected by stairs. Only the stalls upstairs can be exposed to the sunlight coming from outside the exhaust fan, while it is pitch dark downstairs. All walls, ceilings, and floors are made of concrete, which is covered with cracks and mold, indicating a damp environment. All the stall owners were busy cleaning up their vegetable stalls.