In RO2, Kafra Cash is the currency used to purchase premium items. These items can speed up your game or give you a boost when you are so close to your goals. If you enjoy Ragnarok Online 2, they can definitely take your game to the next level.
How to purchase Kafra Cash
At any point in the game, you can purchase Kafra Cash. Simply click on the "Kafra Item Shop" button at the right of your bottom UI.
Once you click this, you will be greeted with a window displaying various products available for Kafra Cash. The top right of the window will show you how much Kafra Cash and RO2 Coupons you have. You will also find the button to top up Kafra Cash, shown here.
After clicking the button, you'll find a window with the different exchange amounts available to you.
Simply select an amount, click "Check Out" and you're good to go!