"I'll do whatever it takes to survive." Mariko Yuzuki works as the secretary to the president of "Global Dengyo", a small and medium-sized company that sells well with new products that are hits one after another. Mariko is a sloppy president who is lax on time and gets by with fast food for three meals, but Mariko's days as her secretary have been somewhat fulfilling thanks to her ability to create hit products one after another. However, her former colleague, Yokose, is waiting for her to spy on her. Mariko refuses, but Yokose threatens to reveal the scandal that Mariko was involved in at her previous company to her sister's employer, and even forces her to have a physical relationship... The story of a beautiful secretary who grows up as a professional secretary while being tormented by the back side of the company and the darkness of society!