Must You Go

Min Yoo-jung is a 22-year-old college student. She was taking a break from school to make a living with all sorts of part-time jobs. One day, a strange man, wearing traditional clothing and speaking in an old way, shows up in front of her. He, Park Yeon, one of the three geniuses in Korean Traditional Music, flew to the future in 27-year-old form. As Yoo-jung helps him adjust to the future, she rekindles her faded passion for music and singing. On the other hand, Park Yeon feels confused about the woman who looks like his long-lost lover but is vastly different from her. Their relationship gets complicated as Lee Won, a top vocalist who fell for Yoo-jung, and Do-young, a woman who harbors a deep secret.