Element: Four Benders In Love

There are four friends and they have elements of water, fire, earth and air but one of them knows how to bend the four elements. We still call that avatar, but in their world is "Ava Ivetre". They are princesses but they have to hide because there are a group of people looking for them, and it was leaded by Fire Lord Karl. Fire lord Karl is a very dangerous creature and wants to kill the ava ivetre that is cared by the benders. In the same way, the princes also have to be with them when they are hiding from Fire Lord Karl . The princes will be able to leave them to join the princess in secret. Will one day be able to defeat ava ivetre Fire Lord Karl?