"Dear colleagues at the company. Yumika will become a splendid pervert." Born as the daughter of a wealthy family and graduating from a university with a high deviation score, Yumika, who is successful both professionally and privately, is disheartened when a business partner in a negotiation comments, "That's a proposal as naked as a newborn baby," but instead, she resolves to embrace a completely naked mindset and, taking advantage of her company's field sales, applies for exposure training at an AV company! Can she overcome the series of shameful acts that shake her steadfast determination with her inherent earnestness?