Former Miss Deriheru was suddenly appointed as a secretary to a major company because he was nominated as a customer. She is a good pacifier, and continues to support Shiozaki, a salesman who can not exert her power in important situations, in a hidden place to support her. The effect is tremendous, and Shiozaki improves his performance. Even the president... We all knew about Kazuko's licking!

In the year 2012, a vampire virus has ravaged the world. Luckily, a company was able to develop and distribute a so-called "Vampire Control System", which allows the unaffacted population to use the vampires as docile slave labor. One day, a young girl with aspirations to one day become a great pianist asks to be hired as a maid at the family home of head of the company responsible for the "Vampire Control System"...