Yua, an alias, is a 26-year-old married woman in her second year of marriage. She works in sales for an office-equipment leasing company and attends a monthly meetup for science-fiction fans. After having sex with a man she met there, she drifts into an ongoing affair. Her lover eventually convinces her to expose herself outdoors, then covers her eyes in the photos and submits them to an erotic magazine. The images draw a huge response from its editors and readers. Though initially terrified that her husband might find out, Yua discovers the thrill of being watched and becomes hooked on public exhibitionism.