Coffee House (2010)

Jin-soo Lee is a writer who has reached super stardom after writing thriller novels. He works for an old friend, Eun-young Seo, an intelligent, beautiful and successful woman who can handle everything that comes her way. Enter Seung-yeon Kang, a girl who has been average in everything throughout her life but is determined to be the best secretary jin-soo ever had and jin-won Han, an old flame of Eun-young that wants to win her back.