Kang Baek Ho and Ham Yi Seul have been best friends since elementary school. Baek Ho has never acknowledged his attraction to her, unaware that Yi Seul has been in love with him for more than 20 years. Finally, at the wedding ceremony where Yi Seul is about to marry another man (Jin Won), Baek Ho regrets that he never confessed his love for the bride. A mysterious conductor suddenly appears and
