Kazuo Ikehiro got his start as an assistant working for directors like Kenji Mizoguchi and Kon Ichikawa. He always had a strong preference for working in jidai-geki and says that he only did a number of modern-day yakuza films because of studio demands. Ikehiro developed a gritty, unconventional style that made him an excellent match for Zatoichi and the antihero screen personae of Raizo Ichikawa.