The four girls first met as first year students in college. They seem to be enjoying their 20's, but inside they all have worries.
Yoo Min still doesn't know what she wants to do. Somehow she gets a job as an assistant to a top writer. She wasn't even sure if she would take the job as an assistant, but after buying an expensive black mini dress with the writer's credit card, read moreshe accepts the job. Her job turns out to be more of a babysitter for the writer's twin sons.
Hye Ji is busy playing around and living the life of a socialite. One day, she is scouted by a talent agency. She then becomes the face for a high profile ad campaign and shoots to stardom. Her other 3 friends become jealous of her.
Soo Jin holds the most jealousy over Hye Ji's sudden fame, because she has tried unsuccessfully to become an actress. Soo Jin has failed many different auditions. Compounding her problems, her father's business has gone bankrupt.
Min Hee has rich parents, but her parents got divorced. Min Hee now wants to study abroad, but her poor English skills holds her back.