The son of a sailor, five-12 months vintage Sosuke lives a quiet life on an oceanside cliff together with his mom Lisa. One fateful day, he reveals a beautiful goldfish trapped in a bottle at the seashore and upon rescuing her, names her Ponyo. But she isn't any everyday goldfish. The daughter of a masterful wizard and a sea goddess, Ponyo uses her father's magic to transform herself into a young girl and quickly falls in love with Sosuke, but the use of such powerful sorcery causes a risky imbalance in the international. As the moon progressively attracts nearer to the earth and Ponyo's father sends the ocean's mighty waves to find his daughter, the two children embark on an adventure of an entire life to save the arena and fulfill Ponyo's dreams of becoming human.