Land of the Aetherians

One mysterious night, a nun found seven babies on her doorstep. Frightened she called the police, who in turn gave over the rights of the children to her. The kids grew up in the orphanage, helping the place grow with their enthusiasm and love towards their caretaker. However, one fateful night they wake up not in their normal beds, but under the watchful eye of the moon and ocean. Before they can do anything, they soon discover that not only have they been transported into a completely different world, but they are completely different people literally. And why are a group of powerful men trying to kill them? Claiming that they have to be disposed of before the ruin of the universe happens? And why are they able to control elements and objects? And why is it that everytime one of the girls even steps into water she turns into a mermaid? Or when one of the boys get mad the earth trembles? Follow them and enjoy their adventure. (MORE DETAILED AND INTERESTING THAN THE SUMMARY)