I work as a department head at this company. My subordinate, Niimi, has a serious attitude towards her job but I've never been fond of her athletic club style. One day, at a drinking session, I was drawn to the gap between her usual self and her feminine charm, leading us to have a physical relationship. Our irreversible affair... As Niimi reveals more of her masochistic nature, I find myself being pulled along and turning into a sadist.
