Standing in front of the building, Nathan said, "So… A market, huh."
That's right, the other building in the space is what is called a market.
Nathan did not even need to scan it to know since there was a sign hanging on top of the establishment written in big words, [MARKET!].
"This would have also been a pretty good establishment." He said, then he suddenly became dejected and continued, "If only I had that Null Energy Stone."
That's right, just like the food processing building, this market building also has a need for a Null Energy Stone that Nathan doesn't know about.
For the market's function, the scan only 'told' Nathan that he will be able to buy and sell things through this building.
As for its specifics, Nathan has to use it to learn it by himself.
Sighing, Nathan dejectedly turned around.