Ponyo, a female fish, runs away from her home in the sea and ends up stranded on the shore. Sosuke, a five-year-old boy who lives on a cliff, rescues her. He promises to protect Ponyo forever. Ponyo grows very fond of Sosuke, and with the help of her sisters and her fatherÌ_åÇÌ_å«s magic, she becomes human. This results in a great imbalance in the cosmos, causing great storms and floods and satellites to fall from the sky. Ponyo becomes a fish again and Sosuke promises to love her no matter what form she takes. In the end, when Ponyo kisses Sosuke, she becomes human again.