Rena is a former model living as a full-time housewife. One day, her neighbor Yoshino suddenly asks her to model for a new line of lingerie as a test subject. Unable to resist his persistent persuasion, Rena reluctantly agrees, telling herself it will be just this once. On the day of the shoot, posing in lingerie awakens sensations she has never felt before. What was supposed to be a one-time job leads to repeated invitations, and as they continue their private photo sessions, their emotional connection deepens. Eventually, their relationship crosses the line into something more.