The story revolves around a young woman with a rather unusual fate. At the age of seventeen, a brilliant violinist named Woo Seo-ri became the victim of a car accident and fell into a thirteen-year coma. Upon waking up, Seo-ri began behaving according to her psychological age. She meets a thirty-year-old man named Gong Woo-jin, who also suffered a psychological trauma thirteen years ago and has been unable to establish his personal life.