Unrequited love is definitely hard enough if you are a normal teen girl, but for mermaid Lily Sanderson, there’s no such thing as a simple crush.

Lily has a secret, and it’s not really her huge crush in gorgeous swimming god Brody Bennett, who makes her pulse flipper-fast. Lily’s mermaid identification is a magic formula that can’t get out, since she’s not just any mermaid-she’s a Thalassinian princess.

When she discovered 3 years ago that her mother was actually a human, Lily finally realized why she didn’t experience quite at home in Thalassinia, and she’s been going to Seaview High since.

Living on property provides its problems-like her obnoxious biker-boy neighbor, Quince Fletcher-but it has that one major perk: Brody. The problem is normally, mermaids aren’t really the informal dating type-when they bond, it’s for life.

When Lily’s attempt to win Brody’s love leads to an instance of mistaken identification, she realizes, quick being a tailfin flick, that happily ever after under no circumstances sails quite simply because smoothly as you planned.