The son regarding an effective sailor, 5-year-old Sosuke life a quiet lifestyle on the a keen oceanside cliff together with mommy Lisa. You to definitely fateful big date, he finds out a lovely goldfish involved in a container to your beach and abreast of saving the lady, names her Ponyo. However, she actually is no ordinary goldfish. The brand new daughter from an excellent masterful genius and you will a sea … deity, Ponyo spends their father’s magic to transform herself for the an earlier girl and you will quickly drops crazy about Sosuke, nevertheless accessibility instance strong sorcery causes a risky instability internationally.