In a tale of valor and loyalty, Dan Sa Yu, hailing from Goryeo descent, fearlessly challenges the Central District to protect his dearest friend. His prowess in combat knows no bounds, reigning victorious in every confrontation against the Cheonpo Armed Forces, the epitome of Goryeo's martial arts excellence. As the saga of the King of War unfurls, the legendary status of the Cheonpo Armed Forces endures through time.