Noah wanted to take a good look at the whole guild before going back home. As soon as he passed through the first doorway Noah could tell there were arrays placed at that place.
From what he could tell they were used to keep the noise from each area to that section itself, so the customers were not disturbed. There were also some arrays that kept the people inside from sneaking some stuff from the guild outside.
'There must be small arrays on all of the products that keep tabs on the products.'
Noah was really Amazed realizing that this matched the way supermarkets or shops from Long Tian's previous world worked but that system was on the barcode basis.
Before he knew Noah could no longer smell the calming scent of the medicine which broke his thought process and a strong scent of metals assaulted his nose.