Jin-wook and Yoo-mi meet at a Gangwon-do resort and get caught up in a series of misunderstandings and accidents. Yoo-mi was charmed by Jin-wook's sly and playful personality and they unexpectedly spend the night together. However Yoo-mi disappears in the morning leaving Jin-wook feeling perplexed and irrationally angry. Three years later the two meet again when Yoo-mi becomes a nutritionist at the company cafeteria where Jin-wook works. They pretend to not recognize each other while fighting their attraction for each other.