* You might be thinking of a specific story or fictional character. If you could give me more context about where you heard this phrase, I might be able to help you identify the person you're looking for.
* "Costa Luna" might be a location. This could refer to a specific beach, town, or region, and the "princess" could be a local figure of interest. If you tell me where Costa Luna is, I can research if there's any known princess associated with it.
Please provide me with more details so I can assist you further!