Flora loves going to the sea. She is fascinated by the shells hidden in the crevices of the rocks and the colourful fish. One day, her gaze meets that of Petite Étoile, a strange sparkling creature... Who is she? Where does she come from? An irresistible desire arises in Flora: she wants to unravel the mysteries of the marine world! Over the years, each grows up on her own, lulled by the infinite beauty of the ocean. Many years later, fate brings them together again. Flora has become a scientist and studies plankton, the mysterious treasure that has always fascinated her. Little Star is now a majestic sunfish, swimming freely through the oceans of the world...