Ryouko Hoshino, a capable secretary with no weaknesses, has always been able to handle her workload flawlessly. On the other hand, the president of the company she works for is a womanizer who constantly changes his secretaries due to his perverted nature. Despite being subjected to the president's constant sexual harassment, Ryouko remains unfazed—that is until one day when they end up having sex in his office. Initially disinterested in sex, Ryouko finds herself captivated by the president's deviant techniques and eagerly offers her body to him every chance she gets... but there's something more she desires. She confesses, "I want your saliva, Mr. President."