The buyer doesn't need to pay tax, but the seller must, like when you go to a store to buy clothes, the purchaser doesn't have to pay tax, but the seller must, and if the buyer resells the clothes, they need to pay tax again.
Therefore, whether for their own established standards or for the benefit of everyone in Wave Valley City, the Wave Valley Five Rats absolutely wouldn't allow anyone to set up their own stall here. Even if it meant sacrificing their lives, they would fight it out. This isn't just about money; it's about dignity!
But their opponents were too strong, outnumbering them and surpassing them in strength by far, with even Crystal Level experts among them. Therefore, the Five Rats simply couldn't resist, yet they refused to give up. For the time being, it was a stalemate, but this situation wouldn't last long. Once their weaknesses were figured out, their opponents would naturally find a way to force them out.