Set during the transition from the Goryeo to the Joseon period, two friends become enemies due to differing views on "my country." Seo Hwi, a skilled warrior and son of a renowned commander, refuses to tolerate injustice, leading his life into turmoil while maintaining a smile. Meanwhile, Nam Sun Ho, an intelligent and talented man, faces discrimination due to his low-born mother. After a corruption scandal ruins his father’s reputation, Nam Sun