The Tsuchigumo (土蜘蛛), or earth spider was one of the Japanese malicious spirits known as Yōkai (妖怪). Here, the earth spider torments the Fijiwara clan warrior Minamoto no Yorimitsu — filling his dreams with wicked beasts and monsters, while his retainers, unaware, play the Chinese strategy game of Go. In its day this was a controversial print — seen as a caricature of Shogun Ieyoshi. The original wood blocks for the print were burned, but Kuniyoshi replicated the blocks and continued to publish the prints. Fight the power Kuniyoshi.
Reed Enger, "The Earth Spider Creating Monsters," in Obelisk Art History, Published June 08, 2016; last modified May 19, 2021, http://arthistoryproject.com/artists/utagawa-kuniyoshi/the-earth-spider-creating-monsters/.