A CEO and secretary (Jensoo)

Jennie Kim is an ordinary girl who's parents passed away when she was very young. She was adopted by a family but not because they felt bad for her but for money. She was always treated like a maid. Her stepsister Soojoo always used to get whatever she wanted but it was not same for Jennie. As she graduated she started looking for a job as a secretary and she came across KJS company

Kim Jisoo is the CEO of the KJS company. She is beautiful, smart and everything about her is perfect. But she is bossy and a cold hearted person. People in her company is always affraid of her. She wants everything perfect. Recently she fired her secretary for messing with her.

What will happen with Jennie when she will meet the CEO of KJS company?