Once upon a time, 7 princes and princesses ruled the 7 seas. The princes were like brothers to each other - the princesses like sisters to one another. Each Princess fell in love with a prince, never to part...so they thought. A terrible war came upon the seas, and they were separated from each other. Now, their girls are reborn in Seoul, Korea, as normal human beings who know nothing about each other. But when a tsunami comes crashing down one evening, they are literally thrown into a post war setting and are tasked with saving the 7 seas...and, unknowingly, coming home.