Eun Young threatens to fire him when Jin Soo skips out once again on a book signing. As a favor to a mutual friend, Jin Soo hires Seung Yeon to be his secretary.
Ji Won enlists Jin Soo's help in wooing Eun Young back. Seung Yeon is given the task of catching a wild cat.
After missing Eun Young's surprise birthday celebration, he comes up with the perfect gift that will also help rid Eun Young of Ji Won.
Seung Yeon must find a way to cure Jin Soo of his writer's block.
Believing that Seung Yeon lacks loyalty to him as her boss, Jin Soo fires her. A funeral that he must attend brings up haunting memories of the past for Jin Soo and Eun Young.
Jin Soo and Seung Yeon bond during their stay in Jeju Island while Eun Young recovers in the hospital.
Jin Soo finds himself coming in between a budding romance between Seung Yeon and the cafe manager Dong Wook.
Seung Yeon is assigned to find a way that will effectively stop Ji Won from pursuing Eun Young. However, her method compromises Jin Soo and Eun Young's friendship.
Things become awkward between Eun Young and Jin Soo, and she disappears after he admits he's not interested in her romantically.
Seung Yeon sends her grandmother to take care of a sickly Jin Soo, and takes his personal matters into her own hands. Eun Young chooses to terminate her contract with Jin Soo.
Seung Yeon's sincere apology and Eun Young's blind date prompt Jin Soo to make a life-changing choice.
As Jin Soo wraps up his last book for Eun Young, Seung Yeon must contend with the reality of Jin Soo's imminent departure.
Two years later, Jin Soo returns to Seoul with the assumption that nothing has changed. However, Seung Yeon and Eun Young both have surprises in store for him.
Unable to grapple the thought that Eun Young is getting married to Ji Won, he enlists Seung Yeon's help to pretend to be his fiancee.
Ji Won slowly pieces together the reason why Jin Soo returned to Seoul. Jin Soo is forced to take care of a drunk Seung Yeon after a party.
Ji Won's birthday party brings about conflicted emotions in Jin Soo.
Jin Soo tends to Eun Young, who falls sick just days away from her wedding. He encourages Seung Yeon to follow her dream of becoming a writer.
Jin Soo crashes Ji Won and Eun Young's wedding. Seung Yeon comes to terms with her feelings for Jin Soo.