He is an elderly father of Kesuke Miyagi. He was a fisherman and karate master who trained his son to use the art in the right way. At the beginning of the movie the audience finds out that he is still alive, however has become ill and later dies, but not before seeing his son one last time. As sensei to Miyagi and Sato, both men came to his side at his hour of death. His final act was to bring the two former close friends together, seemingly encouraging them to make peace.