The Little Mermaid of Hogwarts

One of the mermaids of the Black Lake always wanted more she wanted to not only to be not ugly and vicious but to be human and a Hogwarts student Thanks to a witch she gets what she wants but there are two ways where she might get turned back If she doesn't receive true love kiss before shes done with school or dying. Will Hogwarts go after her and love her for her If that happens?