Three years after marrying Ichika, a magazine editor is assigned to work with the acclaimed photographer Oshima. During a meeting, Oshima says he wants an amateur female model in her thirties and suggests the editor's wife. Ichika agrees to take part in a single shoot, but watching her pose intimately with a male model is already agonizing for her husband. He tells himself he only has to endure it for one day, yet after the session Oshima asks to photograph Ichika nude, pushing the assignment even further across the line.