currently there are two ways of leveling without spending money, the first is making prayer pots, but ranarrs for like 6.5k and sell the pots for 6.8 and you will sell them easily, the other, which i have not tried, is making those new magic essence pots, because its easy to get the flower and the claws are not difficult to obtain, they are a high drop rate. Of course you cant sell those, so you will have an enormous amount of them in your bank. Or you could just empty them out each time you make them, refill them with water and you will never have to buy more vials, this is the method i am considering. you must have completed Fairytale II.