Genku, living in the later Heian period, was also the nenbutsu hijiri of Enryaku-ji Temple's Kurodani Bessho, and Genku was, along with his pupil Shinran, called "Shonin" (the holy priest).
平安後期の源空も延暦寺黒谷別所の念仏聖であり、その弟子の親鸞と併せて、聖人（しょうにん）と呼ばれた。