The series is a multi-generational saga that covers a twenty-year span from 1990 to 2010, and follows one chaebol family as it arises out of the ruins of the 1990s IMF financial crisis that wreaked havoc on the Korean economy, becoming one of the top conglomerates in the nation. Three people become locked in a power struggle for control of this chaebol empire.

In the Joseon Dynasty era, Ok-Nyeo (Jin Se-Yun) was born in prison. She belongs to weji-boo which helps people in the realm of law.