Wooyeon starts an internship at one of the largest companies in the country, determined to work her way to the top. However, her manager is Jaehwan, an attractive but fickle perfectionist. After a rough start, Jaehwan eventually warms up to Wooyeon and she finds herself falling for him... Except that Jaehwan is a married man whose wife turns out to be Wooyeon's high school bully!
