Cheerful and lovable Song Yi, who is frank about her feelings, believed in her mother's words that the plants never betray you, unlike people, and became a botanical garden curator. However, as her boyfriend Do Kyum who was her everything dumps her, she couldn't live proudly anymore and becomes lethargic. Do Kyum who is feisty and self-respecting is a vocalist of an indie music band. As his crew was getting reputation, he suddenly announces its disband and asks Song Yi for a breakup. When Song Yi continuously tries to win Do Kyum's heart back but keeps failing, she wins a ticket to Jeju Island through a competitive rate 500:1 and decides to take Do Kyum with her. Will this trip make any difference between the two?