On this second level trading zone, regardless of the goods being exchanged or their size, it was much bigger than the first level trading area.
Thus, to enter the second tier trading zone, one needed to pay the deposit. This deposit was only a proof of your eligibility. At the conclusion of the trades or when one decided to leave, it would be returned to you.
To put it bluntly, the trading itself did not take any commission fee. Asking for a deposit was only to make sure that the people had the qualification to trade. At the same time, it was also a deterrent to prevent anyone from playing tricks during trading.
When they walked to the trading entrance, Qin Wushuang used the Upper Sky blade and the <Wind Thunder Blade Technique> book he got from Li Wuji as deposits. Then, they passed through smoothly.
After passing the entrance, Yan Feng said thankfully: "Big Brother Qin, I am deeply thankful to you letting me have the chance to see this second level trading place."