Humans know more about space than they do their own oceans. That's a good thing, for a whole other species exists deep in the ocean: mermaids. There are seven kingdoms, one belonging to each ocean. When the child (or children) of that kingdom's rulers reach 18, it becomes time to select a partner. In the Pacific Kingdom, it has become that time for the triplets. There are three selected per kingdom, one for each child. Who will be the merfolk that win the heirs' hearts?