Kazuo first appears at his girlfriend Fumiko's house eating dinner with her and her brother Osamu. While he is there, he demonstrates some wire that he has which is small as sewing thread, but is in fact made of steel. He is then called to Hokkaido on a plane which crashes killing all but 27 passangers. He is believed dead for the rest of the film, but it is eventually revealed that he was not on the plane, as his boss had made him miss the flight with work. He goes to Fumiko's house to visit her, but he is stopped by a neighbor who tells him that she is travelling to Hokkaido to search for him. She tells him the train number and he sets out after the train. When he gets close to it, he is stopped by police who tell him that he cannot advance due to the rampaging Godzilla, but Kazuo drives on when the policeman is distracted. He eventually finds Fumiko and gets her to an ambulance. Kazuo is seen again when the military is deciding how to get King Kong to destroy Godzilla, and when an airlift to the reptile's location is decided upon, Kazuo's steel thread is used to lift Kong. Before Kong can be lifted, he needed to be put to sleep. Kazuo helped with this by helping Osamu Sakurai to drum with a recording of the chants of Farou Islanders. Kazuo watches the fight between Kong and Godzilla.