smile ishihara had no children. after his death, his younger brother, Shiro ishihara, arranged his relics and held funerals. Shintaro Ishihara's clan pedigree is very clear. His father, Ishihara Jie, was born in poverty. As a schoolboy, he finally became a director of a big company through his own efforts. There is no intersection between this Ishihara Jie and Ishihara Smile.

although there is no relationship between Hiroshi ishihara and Shintaro ishihara, Kato Koichi's father, Keizo Kato, and Hiroshi ishihara, are also from the same clan and relatives.

admirer: the father of Seiji Ozawa, a famous Japanese music conductor, Ozawa Kaizuo was a Japanese expatriate in Manchuria in those days. It is said that he worshipped Ishihara, so he named his son Seiji, after Banyuan Seijiro and Ishihara Waner.