The elemental apocalypse

Five teens. Five bearing rare elements.
One world. Going into destruction.
They meet to save this world. Carnova. Few places full of forests. Few places full of cities. Happy one day. Destroyed the next. Aria is 18 she controls air.
Waverley is 19 she controls water.
Ethan is 18 he controls earth.
Fathen is 19 he controls fire.
Serenity is 20 the oldest she controls spirit.
They start off alone. Only to find each other to save the world. Each very special. But will opposites attract? Or will they destroy each other and separate? Or have faith and continue?