Ten years ago, Ja-yoon escaped from a secret government facility in the midst of an inexplicable incident. An old couple finds her alone near-death and takes her in. With no memory of who she is, she grows up to be a bright high school student and enters a nationally televised audition program to win the top prize and help her family. But as soon as she appears on TV, strange people start appearing in her life, and Ja-yoon's seemingly ordinary life turns upside down in a blink of an eye.