She is on the swim team, and can only watch the school prince from afar because a suntanned 'mermaid' is not the sort of girl a prince would ever look at, right?
Rather stereotypical plot, but has a very 'real' feeling for a manga. I liked it. It's important enough to say what is important even if you don't know if you'll get the answer you want. There is no way to move forward unless you have the courage to take the risk and move beyond the answer, no matter what it is.