Rina is a 17-year-old girl from a humble background, living with a financially struggling family. She possesses undeniable beauty and exceptional singing skills, which earned her a spot as a trainee at Serene Ent, the same company as her idol, you, a famous Korean idol and member of a renowned group. However, her intense fan obsession with you caused her to neglect her studies and become more introverted, altering her once kind and bright personality.