Oh Sehun, the young and successful CEO of the Oh Corporations, has one big problem in his hands. 

At least a week, at most a month. This was the time range in which a secretary stays in her job. They always, always, ends up getting fired. Why? Because they can't help being attracted to the unattainable bachelor. In Sehun's frustration, he finally gives up on employing a female secretary. A male secretary would be less trouble, that's what he thought. Well, he couldn't be more wrong.