Twelve years is just enough time for a fresh soul to turn completely jaded.
Son Ye-jin, a 12-year veteran idol who long ago lost her initial spark, now just parrots “Oh, really?” with dead fish eyes. After betraying her group and agency to go solo, she gets caught up with a sasaeng who has stalked her for 12 years and ends up being cast as a trainee again—returning to when she was nineteen.