Deep underneath the sea surface, accompanied by a fish orchestra, the voice of the ocean is telling a story of Little -- the Sea King's daughter. They left the plundered waters of their home to live among humans. They now lead a strenuous life in a somber fish shop in the heart of the harbor district where one day, Little comes to meet a handsome, confident and somewhat fresh young man -- H.H. From this moment on, the life of Little is to take a sea change.