Ai works at a mid-sized parts manufacturer. Her work is flawless, and her looks have made her an object of admiration within her department. She is engaged to her junior colleague, Kimura, in secret from the company. However, their relationship is discovered by her boss, Naito, who has been nurturing her since she joined the company... Naito, who secretly sees Ai as a woman, plans to take her on a week-long regional training program under the pretext of a new project. He then threatens Ai with Kimura's personnel authority, forcing her to offer him her body...