Shigeru Mizuki
Most of his works are concerned with yōkai, creatures from Japanese folklore; he describes himself as a yōkai researcher. This preference was strongly influenced by Shigeru Mizuki (水木しげる), who is an eminent yokai specialist. Kyogoku participates in Mizuki's World Yōkai Association and is a member of the Kanto Mizuki Association and the Research Institute of Mysterious and Marvelous East Asian phenomena.