Park Jae-he considers the relationship a waste of time, but likes to flirt. Despite the fact that he is cheerful and friendly with everyone, in fact he is not interested in other people and refused the relationship. He is a master of getting closer, and then dispersing, and he is not captivated by emotions. Jae He draws a clear line between himself and other people and does not reveal his feelings. But when he meets Yu Na B, he discovers that he wants to cross this border.Na Bi does not believe in love, but wants to meet and be in a relationship. After the bitter experience of first love, she no longer believes in fate and decides not to give in to feelings again. However, when she meets Park Jae, he exerts a magical effect on her, which destroys her determination to stay away.