"Now, change into this suit right in front of me." Nana works in accounting at the same company as her husband. One day, the company president, Ozawa, informs her of her husband's misconduct. As Nana bows her head to apologize on her husband's behalf, Ozawa makes her a proposal. He won't punish him... but in exchange, he asks her to become his secretary. Nana realizes that this is not just a secretary position, but a mistress contract. Was it for her husband... or perhaps for herself? Nana accepts Ozawa's intense and passionate kissing contract...