The series tells the story of two half-brothers from separate mothers but share the same father who experienced different upbringings due to their respective mothers' different social statuses. The brothers find themselves fighting on the opposite sides of the Battle of Ugeumchi, which took place in 1894 during the Donghak Peasant Revolution.[5][6][7] Their relationship is tested as both find themselves questioning their loyalties and values.
Cast
Main
Jo Jung-suk as Baek Yi-kang, the illegitimate older son who was born out of wedlock as the son of his father's wife's handmaid and is discriminated against by his family due to his mother's low status.[5][6]
Yoon Shi-yoon as Baek Yi-hyun, the legitimate younger son who received an elite education in Japan and is preparing for the national civil service exam.[5][6]
Han Ye-ri as Song Ja-in, a daughter of an elite family who is charismatic and strong-minded. She also runs a shop where she trades goods for money.[2][5]
Supporting
Park Hyuk-kwon as Baek Ga, Yi-kang and Yi-hyun's father who is a notorious and wealthy government official in the town of Gobu. He is greedy for reputation due to his inferiority complex about his low birth.[6][8]
Min Sung-wook as Choi Kyung-seon, Yi-kang's ally who is the commander of the vanguard unit of a rebel army.[9]
^ abIn order to circumvent Korean laws that prevent commercial breaks in the middle of an episode, what would previously have been aired as single 70 minute episodes are now being repackaged as two 35 minute episodes, with two episodes being shown each night with a commercial break between the two.[1]
^ abDue to some unpublished ratings, the exact average rating is unknown.
^Moonsol (May 31, 2019). "'녹두꽃' 박지일X김상호, 첩자로 몰려 수감.."적과 연통"" ['Mung Bean Flower' Park Ji-il X Kim Sang-ho, imprisoned as a spy... "Communication with the enemy"]. Star News (in Korean). Naver. Retrieved March 23, 2022.