Not only merchants can do some zenys by doing comerce, you can make so the players can make zeny by carrying products from one town to another. This system were inspired on Mabinogi's comerce system, cat paw representants can be spotted inside the towns (or on the lower field in prontera) and you can buy products on it, and then walk all the way to the other town to sell them for more zenys. It is easy to learn how to make profit on the system, you have to prompt to buy the items that