In a twist of fate, Ro-a finds herself thrown back a decade in time. This isn't just a trip down memory lane. She's faced with a younger, naive Sihyeon, the future superstar who would brutally wrong her. Armed with knowledge of what's to come, Ro-a sees a golden opportunity: a chance to rewrite their history. Can she resist the allure of revenge and change Sihyeon's destiny before he becomes her nightmare?