In the Joseon Dynasty, two friends who grew up together, one the master and one the servant, reunite post-war as enemies on opposing sides.In the Joseon Dynasty, two friends who grew up together, one the master and one the servant, reunite post-war as enemies on opposing sides.In the Joseon Dynasty, two friends who grew up together, one the master and one the servant, reunite post-war as enemies on opposing sides.