Character Arc
By daylight, Lee Mi-jin is trapped in the body of a woman in her fifties, the result of a curse triggered on the night of a meteor shower. Outwardly she appears to be a calm, experienced middle-aged woman, and she leans into the persona of Im Sun-ae to secure a support role at a district prosecutors office. Inside, however, she remains the same ambitious and frustrated thirty-something who has spent years failing to break into stable employment, and the gap between her appearance and her self-image drives much of the comedy.
Her daytime existence becomes a pointed study of how older women are perceived in the workplace. Underestimated and overlooked, Mi-jin repeatedly proves more capable than colleagues expect, using the invisibility that comes with her assumed age to observe, maneuver, and quietly outwork those around her. The role lets the series argue that competence and drive do not vanish with age, even as the world treats her as if they have.
Over the course of the series her daytime and nighttime selves must cooperate to manage one shared life, and the strain of the double identity forces her to confront what she truly wants from work, love, and recognition. As the mystery of the curse unwinds, the daytime Mi-jin grows from a woman hiding behind a borrowed face into someone who insists on being valued for who she is at any age.
