Misuzu, the company president's secretary, is forced to engage in sexual relations with the president as part of her job duties. This arrangement begins only after they submit their marriage registration. While maintaining her position as the president's secretary, Misuzu deepens their relationship. As their sexual encounters increase, romantic feelings develop between them, leading to marriage. While fulfilling her role as secretary, Misuzu gradually assumes a dominant position over the president, reducing him to a submissive partner under her control.