After breaking up with her boyfriend whom she was obligated to meet, Myung-joo rapidly grows closer to Yul-ha, the goddess of practical music, with whom she had been walking a precarious line. Myung-joo, who has only experienced dull relationships, and Yul-ha, who carries deep scars, realize that they are each other's true love and become inseparable. However, that happiness is short-lived. Due to a fatal misunderstanding, the two, who believed they were each other's last love, face a hollow separation. Seven years pass... and before she knows it, Myung-joo has become the editor-in-chief of the magazine 'Yoohee' and is reluctantly assigned to interview Yul-ha, who has now become the top star 'Mary Jin.' She tries to convince herself that they have grown too distant and that it cannot happen, but she is irresistibly drawn to Yul-ha, who approaches her more actively. Eventually, the two start a somewhat secret and thrilling romance again. However, they are faced with another crisis due to someone who disapproves of their meeting...