Sosuke

Sosuke is the male protagonist of Ponyo. He lives on a cliff by the sea. His mother is a carer in a retirement home, and his father is a captain of a ship. He was the one to discover Ponyo. When he broke the glass in which Ponyo was stuck in, his finger was cut in the process. Ponyo licked his cut, and it immediately healed, due to her having magical powers. After taking a great liking to Ponyo, he decides to keep her and give her her name, and then he promises her to protect her forever.

Sôsuke is a carefree and honest young boy of five who lives in a small village by the sea. He lives in a house atop a cliff. As his father is a boat captain and is always away, he lives alone with his mother Lisa. He adores the sea and the boats, probably due to his father but also to forge a bond with him, because he has a great admiration for him. Perhaps that is why he takes special care with his model boat and his sailor's cap offered by his father Kôichi. Likewise, to communicate with him more easily, and despite his very young age, he learned Morse code. He forms a strong bond with Ponyo after rescuing her from inside a jar.