Rikki is a teenage girl who lives on the Australian Gold Coast. Along with her two friends, Emma and Cleo, she must bear the burden-and the secret-of turning into a mermaid every time her skin comes in contact with water, even if it is just a drop. Rikki comes from "the wrong side of the tracks" and can be a bit brash sometimes, but deep down she loves her friends and her unconcerned air is merely a cover to protect herself from what she fears most--being alone.