Kana, a career woman who works as a sales manager at a trading company in Tokyo, is stressed out by the company's excessive expectations, hard work, and misunderstandings with her husband. In addition, she was worried about her relationship with Yoshino, her subordinate who was unable to do her job, but one day, Kana, who was drunk and showed her weakness, was tackled by Yoshino, and in the act, Kana was attacked by Yoshino. Her hidden masochism was revealed. Then, during her lunch break, Yoshino calls Kana to the SM hotel and plays with her boss, who was dignified at her workplace, as an obedient masochist who feels pleasure in pain...