Set during the Silla dynasty, Sam Maekjong is the son of the fallen king and present queen regent, Jiso, but he has been kept in hiding for protection ever since he was a young boy, when his father was murdered. … Park Seo-jun, Go Ara, Park Hyung-sik, Choi Min-ho, Do Ji-han, Jo Yoon-woo, Kim Tae-hyung Added on Netflix 2022-04-08. Youtube Trailer