Saikaku Miyano (born 1962) was a Japanese businessman from Tokyo who frequented Kabukicho during the 1980s. On 12 December 1988, he was assaulted by Snake Flower Triad members Naonobu Fujikawa, Masayuki Minami, and Gidayu Kasai in an alleyway, but he was rescued by the former yakuza Kazuma Kiryu, whom Miyano gave a valuable ruby plate in gratitude for his help.