This is a dramatic story about how people change when consumed by a thirst for power. At the center of the events are six historical figures, both fictional and real. They all become participants in a political conflict. The action takes place in the early years of the Joseon dynasty in Korea. The future ruler, Taejong, battles for the throne against the ruler's assistant, Taejo, Yi Bang-won, and Jung Do-jeon. The prince must overcome his teacher in order to claim the throne.