bossing profit and equip upgrades.

if you are just starting and you want to have sufficient funding to do the top bosses quickly, then you will have to invest your own money. The principle amount you will have to use is proportional to the time you have to spend on this game. Although I spent a lot of money on this game to fund my mage. I have already gained back and profit because of the bossing. Once you have set your foundation, connection and having good reputation is extremely important because you need a good flow of cash going in and out or else you'll be stuck with mesos in all your mules unable to do anything.