The story revolves around Ha-kyung and Young-ho, who are old best friends. Ha-kyung works for a travel agency and lives with her single mother who works as editor-in-chief at a magazine publishing house. She loves hanging out with her old buddy, Young-ho, and the two share an effortless banter. Although they are long-time friends, their relationship teeters on the threshold of love and friendship. One day, Young-ho meets a beautiful, intelligent, and wealthy woman, Young-ae, and he soon grows infatuated with her. When Ha-kyung realizes that Young-ho has feelings for someone else, she feels bouts of jealousy and realizes Young-ho is more than just a friend to her. She suppresses her jealousy and decides to give up her feelings for him, asking Young-ae to take care of him. Ha-kyung tries to find her own way through life, while trying to maintain her friendship with Young-ho. Ha-kyung also had a long-time secret crush on her middle-school tutor, Sang-hoon. She reunites with Sang-hoon, and the two begin to spend time together. This development does not go unnoticed by Young-ho, who soon begins to feel jealous as well. He starts seeing Ha-kyung as a woman, not just a friend, and asks her out on a date. A misunderstanding results in Ha-kyung waiting in the rain for Young-ho, who never arrives. The two try to go back to being just friends, as Ha-kyung focuses on her career and Young-ho pines for her. After spending a year abroad, Ha-kyung returns to Seoul and reunites with Young-ho. Both soon confirm that their feelings have not changed.
