Created for the first Japanese exhibition dedicated to video art, Video Communication: Do-It-Yourself-Kit, this work documents protests outside the Chisso Corporation headquarters in central Tokyo. Hazardous byproducts from the company’s chemical plants had caused severe mercury poisoning—and, consequently, a neurological disease—in Minamata’s livestock and inhabitants. Nakaya filmed the sit-in with a handheld video camera and installed a battery-powered television monitor on-site, allowing the demonstrators to watch themselves by playing back the recordings of their actions.