Taking the real historical event "privatization of Water Resources" in the 1700s as the theme, it tells the story of Wang Shizi's struggle against the powerful forces occupying the eight channels of water resources in North Korea. it is a historical drama that combines political and love elements. Yu Chenghao will play Li Xuan, a righteous and resolute son who fights against evil forces in the play. Kim Suo-hyun plays Han Jiaen, a smart girl who takes revenge on his son because of his father's death, but unwittingly falls in love with him.