Lee Yeon-kyung

Three elite North Korean sleeper agents live under cover for so long that they believe their cover stories are their real identities. They are shocked when they are ordered to kill one another or face death at the hands of an elite hit team.

Seven girls become good friends in high school, then events pull them apart for 25 years. When one of the friends lies dying in a hospital, she wishes to see each of them one last time.

Ah-young, a grown orphan with government aid cut off, starts working as a nanny for Young-chae, a single mother who works at a bar to make ends meet.