In 2026, a major riot breaks out in Kyoto. The Kyoto riots - a nightmare that transcends race and nationality and attacks strangers in front of you. The cause was not a virus, a chemical substance, or terrorism, but a single chimpanzee. Nozomu Suzuki, a primate researcher confronting an unknown disaster, sees the truth... A double winner of the Eiji Yoshikawa New Writer Award and the Haruhiko Oyabu Award, this novel is a cross between a novel and an entertainment novel!