KBS1's 30th Daeha Drama tells the story about Jeong Do-jeon, a real-life historical figure (1342-1398) who was one of the most powerful scholars and politicians of his time and a close supporter of King Taejo, the founder of the Joseon Dynasty. The period drama shows the crucial role Jeong had in the planning and founding of Joseon and the obstacles he faced in the process, as well as his lasting impact on Joseon's politics and laws.