An audacious part-timer who is great at her job and a well-meaning manager who is suspicious of the new hire, team up to keep a convenience store afloat.

Miserable and unsuccessful, a woman thinks she's lost all her spark — until one day, her spunky younger self appears in front of her demanding change.

When a crime organization from North Korea crosses borders and enters South Korean soil, a South Korean detective must cooperate with a North Korean detective to investigate their whereabouts.