bnha x mermaid reader

your name is coral and you are a mermaid. but you are a very important mermaid, you are born with special power that cannot be known to anyone. you were born in Atlantis the hidden underwater kingdom, you were born a princess. but a woman came in search to help the Royal Family hide their daughter well. they had no choice but to give her into the hands of the sea witch in order to ensure coral was safe. so queen marine and king Marvin would live the years not knowing anything. but this is hidden from coral as she escapes to land and meets some hero's.