The Great Seer begins during the reign of King Gongmin. But despite being about seers, geomancers, divinators and the like, this drama is less about the fantasy and more about the political movers and shakers — people who had the power to advise, and therefore control, kings.
Mok Ji-sang is a gifted seer/geomancer, born with the ability to see into people’s pasts and futures. There are those who believe falsely that he read morehas dark supernatural powers, thinking him possessed by ghosts. He eventually becomes a "king-maker," who holds the key to a major political shift in the overthrow of Goryeo and the rise of Joseon when he backs General Yi and effectively shapes the future of Korea as we know it.