My Pillow Business Begins!

Giseok, the bottom-most salesman in among his peers, is at risk of being fired due to his poor performance. He needs to become the sales king to avoid being fired… Giseok tries his hand at the pillow business, a taboo in sales. Will he be able to overcome temptation, jealousy, and office politics to become the legendary sales king and enjoy the fancy things in life?